Since you are mostly using images, smoothing the edges should be easy just put on a subsurface or something, her hair is exspecially edgy. Longer animation cycles would help a lot. in some scenes she looks very badly drugged and not in a good way, so maybe tune that down and go for a more smart sexy smile with less blush. I am on the lookout for a more realistic looking cockhero game, since you already have some elements of that why not expand and go more into that angle?