Yeah you can tell why this looks odd from the get go! I figured out how to do textures on the ground, but Unity has no option for applying textures on the ceiling and walls. So I used blocks to compensate ahahaha! 
I could add some floating rocks and enemy ships as obstacles, as well as some sort of projectiles to fire and a health bar. But I want to try not to invest too much time on one single project in the course and risk taking too long to get to the later parts of the course.
So here’s one level
And here’s another
