I am very unfamiliar with your origin story for the game, although I did find it interesting lol. Going in blind and just commenting on what was in the build it seems like a solid start, the game plays well and I didn't notice any bugs or major issues. And I really feel like the UI was well implemented, I always find that part to be kind of a slog to get through so it's nice to see an indie developer take the time to put some thought into it. I really loved star fox growing up so overall I had a great time playing, even when I was intimidated by the bosses dominating T-pose lol.
Really the only thing holding you back here is the recycled assets (and I can sympathize, my primary skillset is in the 3D art pipeline and there is a ton of stuff to learn in order to create custom assets). Nice game though, fun to play and I could see it expanding quite a bit.