Hey, the artist is Brom. That's kinda cool, though admittedly this isn't my favorite piece of his.
I, personally, don't mind art like this, as long as it stays clean. If the Drow chick on the cover was doing it with a spider or something, THEN I'd have a huge problem. Besides that, I'm pretty much used to seeing girls [hey, there are plenty of big muscular guys wearing only a little bit of cloth to cover their important place too] wearing flimsy outfits. I don't quite see it fitting hand in hand with the genre [As in it being necessary], but there is enough of it's presence that I am not put off when they are put together.