Step 1: Begin with the head. Draw a rounded triangle. Add a circle in the center for the eye, and a curvy line going back from the pointed 'nose' end.
Step 2: Draw the body by extending the lines of the head back and in, almost meeting, with a small gap.
Step 3: Now for the fins. Draw a curved line from the top of the body up and back, before coming down. Below the body, add three triangles, two small and pointed, one wider and more rounded. Another triangle fin goes in the center. All of the fins should have many lines drawn through them for detail.
Step 4: At the back, draw a "3"-shape with many lines across it for details.
Step 5: Yay! Your tilapia is now complete!
