Here is my entry:
I tried my best, but I know the background looks a little bit strange, but I was trying to make it be a dark horizontal level, and I had some EXGFX that made the pallete glitch. I was unable to fix it completely, but my entry is playable. It just took me a few times to be able to complete the level. I used SNES9x v.1.53 to test it so I don't know about the other emulators.