A few weeks ago, just for fun I started doing concepts for a faux Justice League CG movie. I've always been a huge fan of Bruce Timm and the DC Timmverse he helped create, and I thought it would be cool to basically design the JLA movie that I would direct if given the chance. I didn't do any huge drastic changes because I didn't want to betray the characters in terms of who they are and what they're about. I just wanted to build on what's already been established and tweak things the way I saw them. I was going to wait until I had more artwork before I posted this, but with all the freelance I've got, I don't think I'll be able to work on this again for a while.
THIS IMAGE: I wanted Batman to be composed of triangular shapes to emphasize how dangerous he is. I also didn't want to draw him big and bulky because in my version he's primarily an acrobat, not a bodybuilder. He's constantly doing flips and jumping off rooftops, so he'd be extremely lean. I also gave him the more armored costume because
1) It looks cool
2) Having an outfit that looks more like protective gear while everyone else is wearing more "costume-y" outfits visually reinforces the fact that he's human and mortal. It reminds us that he NEEDS this to protect him and that's a trait that I (and I think most people) like about batman.
I also made Batman's skin even more pale here than in the Bruce Wayne pic to further emphasize the lack of warmth in Batman, and it also helped to add more contrast against the darkness of his suit. I like the idea of his face being that one little speck of pale, cold, humanity peeking out from this huge enveloping shroud of darkness.