I'm sure you will have heard this before but the lack of strong focus on any of the figures makes this rather weak - and yet it has potential. Try focussing on at least one area and getting it sharp
Nice idea, lighting is good, but the image looks horribly unsharp (except the small piece of real background on lower right corner). So it's only looks.
I wonder if a little more deep depth of field could help this shot. The 2 main points in sharp focus that I see are the middle center side of the face, and the bottom right cloth-like texture.