First, take the white paper. Draw the margin evenly around the white paper. We will make the shape of the fish with the help of two curved lines. Then add the curved lines at the back, and extend the lines backward to draw the tail.
To color, each fin of the fish, use the same color. We will give blue color to the fins. Give blue color to the tail of the fish. You can use other colors. After coloring highlight with a black marker pen.