Comics are comics for a reason. Looking at the overall heavily stylized proportions, the expression of the character was obviously more important to the creator than going for realism.
The monster's colors are fine, the focus on the jaw and eyes is appropriate and the shadowy color makes for a menacing appearance. I wouldn't change a thing, as it fits your style. However, speaking of values, you might want to make the teal background around fifty value units lighter, to make the monster really pop. At the moment it's value is too close to the background.
Lastly, it's a good thing that you limit your palette. I really like the colors and style.>>101951721>>101951757>>101951877>>101951902>>101952044>>101952257>>101952499
Oof... The both of you would do well actually reading a book on this subject, instead of spitting superficial semi-knowledge.