I saw recently some photos forseen for auctions (Dorotheum in Vienna/Autria) from some known photographers. There were some -really- pornographic (oral sexual activities -to use diplomatic language-, lot of nudity, even few discusting ones) among them. Pornographic, but (probably) somehow art photos. And the photos looked somehow good...
The point is, that it doesn't matters a lot, WHAT FROM do you take a photo, but HOW the photo is taken. I think, this photo could be improved, if it would be -photographically- more special (different posing, face expressions...).
I'm not an expert, but, I don't think this photo doesn't belongs here. Why not some konstructive C&C deserved?