Thanks! I've been so pressed for time lately and I haven't been very happy with the amount or quality of work I've been doing. So, I gave myself permission to have fun and experiment and see what happens; I think it's the light and shadows that mostly make this image work for me, but I tried to build on that.
In a way you're asking the wrong person; if I was a better marketer I wouldn't be working several jobs to make ends meet.
That being said, the first theme that comes to mind is "Extraordinarily Mundane" or something along those lines. Make it a whole series of abstract shots of otherwise ordinary, everyday objects, with interesting angles/lighting/colours or what have you to make it work.