It just seems to be too much of a "point and shoot". There is no great composition, there is a reflection of the light in the top right corner which is very distracting and there is just nothing to really look at! Sorry.
Pose and lighting are pretty good but what really hurts this shot in my opinion is the negative space. The background, being busy, doesn't add anything to the composition and detracts somewhat from your subject, so bringing it in for a closer crop would have given this more impact, I think.
Sorry, too much of a "snapshot" for my taste. Distracting background, bad lighting (glare on door, shadows from flash). Why couldn't he be wearing a pink top as well?
Lovely model, but a low quality snapshot, with the direct flash shadows, the tilted door post and the light reflection in the door.
The idea is okay, please devote more attention to the execution next time.