In all honesty for a exaggerated fan-art it's passable, but to give it more edge. I recommend you have a more firmer affirmation for real anatomy and composition. The background is supposed to complement the image, and the red smudged fire really clashes with the dark blue Vegeta focus.
@Hiryu, you simply copy from Skull Girls and have only just recently started listening to others. Your opinion is void of real validity. Let the reviewers review.