To me the biggest thing I'm not a fan of is the overdone makeup. Maybe making the outfits a bit less colorful might also help, but generally I don't find it to be a huge deal.Slut costumes are pretty ugly imo. Except Batgirls which is one of the best costumes in the game. Hope future Slut costumes are just super skimpy versions of the heroines normal costumes. Thought that was a great idea with Barb.
I'm just nitpicking though and I probably have a minority opinion.