First foray into adult anime-need some pointers

Well the title pretty much says it, other than doing picture mods (like turning Etna from the disgaea series pictures into nude versions) I haven't really jumped into a fully original piece yet...well started my first attempt this is what I am working with so far (forgive the symmetry it is easier to animate) Other than it missing certain parts could I get some advice on what I have done so far? Much appreciated :P

I'm no artist and I don't really have any advice for you but nice work, I'm looking forward to seeing what you make in the future!