Well, I really do think you should go back and repose. This is why - the pose itself looks really unnatural. Did you try doing it with your hubbo? I have a hard time trying to picture myself doing it (although i wish i had those legs, yo!). The way his body is turned and how she's "sitting" on his hip but there's nothing there on his slim hips to hold her. But if you don't want to redo the pose...
Their hands look like they're floating. Her right hand on his head in particular looks like it's hovering, not even touching his hair or shadows. His right hand, again on 'top' of her calf rather than gripping it and again no shadow. Her left hand looks like its doing something a little naughty
You could try postworking his pants down a bit, but they do look like they're tights which maybe the look you're going for. I hate hate hate cuffed tail hair on men. So that's more preference, but the loose bits on the top never make sense to me. Postworking the strands longer would look better. It's got to be the most unattractive hair out there =/ His ponytail looks like 2 different pieces of hair coming out the bottom. The color doesn't match and it looks like the right piece is overlapping it. Same with the hair under his ear, it seems out of place and too bright. Her hair is nice but it looks flat above her forehead.
The swirls pull it together alright, it matches the text which is nice. Your lighting seems off as well. You have pink light which looks like moonlight coming from the right to left, but the moon is behind him to the left so it would make more sense for it to go left to right. If it's coming from the swirls, it still doesn't make sense, it should be going up and down since you have the pink on the bottom.
It's a nice background. You have a lot of nice elements but it doesn't really look organized, if that makes sense. I do like the text quite a bit though. Hope that helps. =)