I love this shot! It seems like it was cut from a scene in a movie; the door opens with a clang, the nerdy (but ruggedly handsome) male is caught unawares - jaw agape, the young lady stands there and asks the coy little question, "Can I borrow some sugar?"
Anywhoo, the lighting is excellent and the model is absolutely fabulous! The only thing that I may suggest in the future is to add a blurred foreground shot of the nerdy handsome male, slightly off the frame; perhaps just at that moment before he falls out of his chair backwards.
watch for the noise in the background thats on the ceiling try using the blur tool to push back the background and make her pop out more, also the piece feels like it has more than one focal point try making her sorroundings B&W and make her and cup only color darken the background a little.