I like the Dark Knight look, its something thats not explored enough with this character I think, real emotive loose cannon sort of thing for the BatMan
But yeah, get rid of the nipples, this a character that is wholey human with no special powers or abilities so body armour should be the go with the torsoe look and to give the augmented physical characteristics the BatMan exhibits like power punches, landing hard from great heights, leaping and all that, its reminescent of exoskeletal augmentation.
Absolutly great model though