I love playing with proportions. I used to struggle with really letting myself play and would try to make things look realistic. Here’s a secret: sometimes realistic sucks. Exaggerate. Have fun. This character looks bigger and more powerful because his head is so disproportionately small. It’s an old trick. Pick up your favorite comic with a big bruiser character in it and see if his or her head isn’t ridiculously small. Looks awesome though, doesn’t it? Go. Play.