It's an honest effort for a first map, but I do have some notes to make.
First, none of the rings are flagged to float, so they all sit on the ground instead. The lack of texture diversity means everything looks the same, which becomes a much bigger problem when you make the player have to jump down or into something, and they cant tell where to land or where the gaps in the wall are, because the floors and walls have the exact same texture. There's also no use of changing light levels for when you're in he caves either. There's even some Hall of Mirrors walls that mean you're missing a texture there.
Above all else, I didn't have much to do in this level. I suppose that's to be expected from a first map, but its mostly wide paths with some enemies to ignore, and a few springs or boosters to interact with.
Don't let that discourage you though, we all gotta start somewhere! Your map DOES try to have secrets like emblem collecting, and its got more length than some other first time maps. Just keep at it, maybe ask some community folks, and you'll get to making good maps soon enough!
