my opinion

good but i think u should use much darker reds and bring the jaw in abit and make it thiner for a more stand outish look and darken the sockets :] but still nice im not gunna vote u down like the other guy caus that was unfair voting

Nah

Even dough how much you worked on this one, the result wasn't quite impressing. Try using stronger colors, and remember to draw with thicker lines. Good Luck.