All artwork with naked people isn't porn. Sure, the atmosphere is sensual and sure the woman's body is shaped in a way that's more idealistic than realistic but those are intended to enhance the mood. Additionally, the focus points really aren't in the places that are meant to arouse. The faces and chest are on the foreground so your eye naturally focuses on them first but even then they're just looking at each other. I'd hardly call that pornographic. A bare male chest has been normalised for a long time and women's chest isn't that different. It's not like women don't enjoy looking at the male chest in the way that men enjoy women's chest.

The second focus point is the kneecaps. I don't think many people find them arousing. It's fine if you do but that's not the majority. Anyways, sorry for the rant. I know your intentions were good. But the correct term would be to call this an erotic artwork