She's beautiful, but the background is cluttered and her position and expression make me wonder what's going on below the frame that I can't see. Frankly, she looks like she's on top of someone (which is fine).
Nice shot for what should be obvious reasons, but I'd make two changes. I think I'd have tried to eliminate the shadow coming off her left breast, and I might have had her looking at the camera as if she'd just been looking down at her chest and was in the process of looking up.