I like the color scheme, and the shading and highlighting are very smooth. The base detracts from the overall look of the mini, IMO, it is too shiny and too drab. The shiny part could be moisture, but the grey is too uniform and plain, and seems a bit unfinished next to the very well painted mini. As for the background, you obviously went for a more dramatic lighting, so, I think this time black is addequate.