Some clowns are sad. It's a good drawing but too many colors for me. Repeating a color adds cohesion, such as if you had made his shirt a blue or green as used on his hat. His eyes are pretty catchy.
We don’t make art to show someone what something looks like. All this requires is eyes (or a lens). Art is supposed to have meaning, emotion, power, or magic. Alan & Mario "FourThirds"
Jimbob