Step 1: Start by drawing a large almond shape for the body with a mouth on one end and a space on the other for the tail.
Step 2: Next you'll draw the large round eye near the mouth.
Step 3: Then draw in the tail fin with lines opposite the mouth and eye.
Step 4: Next you'll draw the dorsal fin on top of the body, making several spiky fins followed by a rounded fin just before the tail fin.
Step 5: To finish, draw the ear-shaped side fin and the two bottom fins, one larger than the other.
How to Draw a Cartoon Damselfish – Step-by-Step Tutorial