Draw a simple oval or teardrop shape for the fish body
Add a triangle or curved tail at one end
Draw a small circle for the eye
Add a curved line for the mouth
Sketch a fin on the top of the body
Add one or two side fins near the middle
Draw a bottom fin if desired
Add curved lines inside the body for scales
Outline the fish with a darker pencil or pen
Erase extra sketch lines
Color the fish with your chosen colors