The position of her hand makes it look like he has a pony tail and the dark object near his middle back tends to be the first things that capture my eye. Setting is excellent and the lighting of the handrail add to an otherwise interesting shot.
I find there is something ambigious about this picture (although the title perhaps gives away the intention). To me the poses does not unquestionalbly mean love. The guy looks perhaps menancing, the girl submissive or afraid. An there lies the charm of this picture, despite the title there are unanswered questions. Good luck for the remainder of the challenge.
Dropping out of third person mode for a single image, I'm always fascinated by the compare/contrast of title and image. In this case, the immediate impression was it's a good title, but a better one would have been "Isn't it Romantic". :>) Ahem - anyway, this image is very artistically impressive for several reasons. The partially lit faces, vague details, soaring staircase leading up, the foot against the wall - it's a perfect set piece that has all the appearance and feel of a candid portrait. The use of light and dark in addition to subtle color is sound, although the deep background could use a little more saturation. It's only natural to offer a suggestion and if the author has the chance to revisit this scene, a little (very little) foreground light would enhance the romantic effect. Originally an 8, it has been rerated to a 9.