vixi, tem como editar esse mesmo pixel com as modificações? não sei mecher muito no site, vai custar, mas vou tentar melhorar ele....

 His hands are the same size as his eyeballs. You are having trouble with anatomy and perspective. For anatomy, there are references available online (guides by Loomis and others that teach construction, photographs of people, charts of the skeletal system and musculature, etc). Look at your own face in the mirror, and note where the features are in relationship with each other (do the ears line up with the eyes? Where is the neck widest?)

there are exercises for learning one point perspective, two point perspective, etc as well. Learn about vanishing points and horizon lines.