This is actually a very nice shot. Something about the cropping/angle bothers me, but I can't quite put my finger on it. Oh wait....I can almost see it.... Seriously, the angle of the model's eyes, and the cropping of the photo draw the viewers attention away from the beutifully spot colored heart you've presented, and instead make this photo all about the model's nipple, and how you can almost, but not quite, see it.
Well done..... her expression is bittersweet - slightly ambiguous is the presence of the heart and the cross above the modestly exposed breast, which I like
This is a really good and well processed shot... Main nitpick: you've left just enough areola to be a distraction, shuld have either cloned it out or cropped a bit tighter 9