The easiest way to draw a jellyfish is to work from the inside out.
Most beginner tutorials start with a neat dome and add wavy lines beneath it. That produces a recognisable symbol, but it misses much of what makes a real jellyfish interesting. The bell is transparent, the inner structures remain visible, and the trailing parts vary from thick folded arms to almost invisible threads.
In this tutorial, I will show you how to observe those differences and translate them into an expressive sketch. You can use pencil, pen, charcoal, coloured pencil, watercolour or any other medium that suits your sketchbook.
You do not need to hide your first marks. If your observation changes, place another line beside the first. Those marks are thought lines, and they show how the drawing developed.
Choose a clear jellyfish reference
Drawing from life is ideal if you can visit an aquarium. Jellyfish move continually, however, so it is completely reasonable to work from a photograph or pause a video.
Choose a reference in which you can clearly see:
- the outside edge of the bell
- some of the structures inside it
- the thicker oral arms below the body
- the direction of the finer tentacles
A dark or uncomplicated background will make the transparent forms easier to study. Side and three-quarter views tend to be clearer for a first drawing than a jellyfish seen directly from above.
Jellyfish species can look very different, so follow your particular reference instead of trying to draw every feature you associate with jellyfish. My guide to finding an animal drawing reference can help you choose an image that gives you enough visual information.
Look through the bell before drawing around it
Begin by studying what is visible inside the jellyfish.
You may see a central mass, curved internal structures, shadows beneath the bell or soft forms partly obscured by the translucent surface. Place the most noticeable of these forms first.
Do not try to outline every piece of anatomy. Instead, record two or three internal directions that help you understand how the animal is sitting in the water. Use curved, searching marks that follow what you can actually see.
These first lines give the rest of the jellyfish somewhere to belong. They also prevent the bell from becoming an empty cap placed above a collection of tentacles.
If an internal form is hazy in the reference, let it remain hazy in the drawing. A jellyfish does not need the same firm outline around every part.
Draw the bell around the inner forms
Now observe the upper edge of the bell.
Rather than constructing a perfect semicircle, follow its particular contour. One side may rise more steeply than the other. The top may be broad, compressed, tilted or slightly flattened by the jellyfish’s movement.
Make a confident pass around the visible edge. If the curve feels wrong, look back at the reference and place a better line. Leave the earlier mark where it is. The small differences between those thought lines can help suggest a soft body shifting in water.
The lower edge of the bell is often more complicated than the upper curve. Look for:
- a turned-under rim
- scalloped or uneven edges
- folds overlapping one another
- dark areas where several transparent layers meet
- sections that disappear into the oral arms
You do not have to join every contour. Broken edges often communicate transparency better than a single continuous outline.
Separate the oral arms from the tentacles
One of the most useful observations you can make is that everything below a jellyfish is not the same kind of line.
The oral arms are usually the thicker, folded or ribbon-like forms beneath the centre of the bell. The tentacles are generally finer and may trail from around the bell’s edge. Their exact appearance depends on the species in your reference.
Draw the oral arms before the finest tentacles.
Follow one edge of an oral arm as it descends, turns and disappears behind another fold. Then find the returning edge. Allow the width to change as the form twists. Some sections may open out while others narrow or vanish behind neighbouring forms.
Avoid drawing every oral arm as an identical strip. Look for the largest fold first, then place smaller folds around it. Overlapping edges will create more depth than filling the area with equal wavy lines.
Let the tentacles travel in long marks
Once the larger hanging forms are established, add the fine tentacles.
Before putting your pen or pencil down, follow one tentacle with your eyes. Notice its overall journey rather than every tiny bend. Then draw that journey as one long, direct mark.
Some tentacles may curve smoothly. Others may change direction, overlap or fade from view. Vary their length and spacing according to the reference.
Resist the urge to distribute them evenly. A real group of tentacles may gather closely in one area and leave open water elsewhere. That unevenness is important.
The tentacles should generally respond to the same surrounding current, but they do not need to run parallel. Thicker forms react differently from very fine strands, and each one may be at a different stage of drifting or curling. My tutorial on how to draw movement explores this kind of directional observation in more detail.
A single confident line can be more convincing than a carefully corrected tentacle. If the first mark misses the direction, draw another. The combination may feel more fluid than an isolated perfect line.
Create transparency without outlining everything
Transparency is not achieved by making every line pale. It comes from showing which forms can be seen through other forms.
Look for places where:
- an internal structure remains visible through the bell
- one oral arm passes behind another
- a tentacle disappears and reappears
- overlapping transparent layers become darker
- the outside edge blends into the surrounding water
Keep some edges definite and allow others to dissolve. If you outline the entire bell with the same strength, it can begin to look solid.
With graphite, I use the side of the pencil to place broad areas of value, then add darker marks where forms overlap. If you are working specifically in graphite, my animal drawing in pencil tutorial explains how I vary pressure and texture without polishing away the sketch.
With pen, use broken contours, clusters of hatching and overlapping lines. With watercolour or coloured media, place broader transparent areas first and allow selected edges or internal forms to carry the detail.
On white paper, a pale jellyfish can disappear. You can solve this by adding a few areas of water tone around it. A patch of darker background beside the bell may describe the transparent edge more effectively than another outline.
Avoid the umbrella-and-string effect
If your drawing looks like an umbrella with noodles hanging from it, compare these three areas with your reference:
The bell: Is it too symmetrical or too firmly outlined?
The oral arms: Have the thick folded forms been reduced to single lines?
The tentacles: Are they evenly spaced, identical in length or repeating the same wave?
Return to one area at a time. Add the particular asymmetry of the bell, widen an oral arm into a turning ribbon or interrupt the repeated pattern of the tentacles.
Do not restart the whole drawing. Let the new observations sit beside the earlier ones.
Give the jellyfish room to drift
A jellyfish drawing often benefits from more open paper than you might initially expect. Its finest tentacles may travel far beyond the compact bell, and that surrounding space helps communicate their length.
Before adding the longest lines, check that there is enough room beneath and beside the animal. If a tentacle reaches the edge of the page, allow it to leave the composition rather than forcing it to curl back inside.
You can add a few drifting marks, patches of tone or distant fragments to suggest water. Keep these secondary to the jellyfish. Bubbles are optional and should come from observation, not from the assumption that every underwater drawing needs them.
A useful sketchbook exercise
Use one photograph or a paused aquarium video to make three drawings of the same jellyfish.
In the first, concentrate only on the inner structures and the bell. In the second, ignore most internal detail and study the direction of the oral arms and tentacles. In the third, combine those observations into a fuller drawing.
Each sketch can remain open and exploratory. There is no need to turn all three into finished illustrations.
This exercise helps you see that a convincing jellyfish drawing does not depend on copying every strand. It depends on noticing which parts are transparent, which are substantial and how the different forms travel through the water.
The same approach can be used for many other subjects in my collection of sea animal drawing tutorials: observe what makes the animal distinctive, draw the most informative relationships first and allow your thought lines to remain part of the finished page.