Step one:
First draw a curve that looks a bit like "3".
Step 2:
Then use arcs to draw its mouth.
Step 3:
Add an arc below the mouth to draw the belly and tail. Pay attention to the changes in the arc.
Step 4:
Then draw short lines on the head and back and connect them with arcs to form the dorsal fin.
Step 5:
Draw a large arc on the belly to form the belly, and add a little small arc structure.
Step 6:
Then draw square fins on the back and sides of the face, and add a few small horizontal lines.
Step 7:
Draw a broken line on the dorsal fin and add its eyes.
Step 8:
Finally apply a nice color, the seahorse is completed.
