Not bad bullet. I think you might improve it quite a bit by adding a slight curvature to the pieces around his head, not quite as dramatic as what I have marked in red but if you look at the reference, you'll notice they aren't quite flat. And then if you can bevel the edges (round them out a little more) so they don't look so sharp thay would help even more. Overall though, I think you're doing good. Just make sure you give your February challenge entry priority. I think your ship is pretty cool and besides, there's no deadliine for this wip
Don't be satisfied with what you can do but rather strive to do the things you can't do!