I like this, but one distinct element that would really improve it is some high-contrast shadows from a hard light source. The red framework in the middle of the image, for example, works with the overall image but doesn't have a shadow cast on the wall behind it, and looks a little flat because we can't see any shadows on the skewed elements (or at least, not that much). If you bring the contrast up about 10% for the overall image I think you will really have a sharp piece.