WELL I WONDER WHY THIS PIC IS IN "POPULAR ART"
HMMMMMMMMMMMMM
I reckon you could have avoided using outlines on this pic, Kinsei, and the hips are twisted compared to the torso.
I think the colour of your succubus would appear more yellow, since the backgrounds suggests she's under a yellowish light. Keeping this in mind would make your subject mesh with the background more easily, as well, since you're limiting the colour palette.