First off, let me say that this is a rather lovely set up of materials, colours, and composition. As for the painting itself: You have a good eye for colours, by the looks of it, and your shading is solid. I would say, however, that you lack refinement. The shapes are all soft edged, as is the shading. Detail is lacking; perhaps another pass over. In short then, some general refinement, neatening and strengthening of some edges and more control of the shape of objects. Otherwise a very good piece.