I think this piece would look good on the table top with stand out color selection, but close up it does have some drawbacks, reflected by the score. My first suggestion would be to take a shot using blending instead of relying on drybrushing, the earlier you get started working on this, the sooner you'll start producing top quality work. Also while you do have highlights here, there doesn't seem to be much in the way of shadows, this is especially apparent in the whites and metallics. Even when using metallic paints, you should almost take as much time and technical precision as if you were using nmm, building up from shadows to highlights, rather than relying on the metallic flake in the paint. Just a couple observations, I hope it helps!