I like it, the coloured version is great, the wings are done nicely and the colours used go well together.
The reason I think the black and white version in inferior to the coloured one is that some of the different colours used sorta translate to the same shade of grey which (in my humble opinion) makes the effects seem a lot more messy for some reason. Also something I'd like to point out that's present in both versions is the fact that the lighting on his arm and shoulder is veeeeery strong and sharp.
All in all sweet tag, I'm digging your style and look forward to seeing more from you!