This level... what the heck did I just play?
Now, I understand it's your first level, but here are a couple tips:
1) Pick a theme and stick with it
Now, this level was all over the place, and I'm just very confused with it. It went from flooded castle with sand in it, to snow, then the snow transitions into sand, then your in the sky going down wood, and then it just ends. I'm not sure about your though process to make it like that, but you should stick with either the castle them or the snow theme, not mix up multiple.
2) Watch where you put your high tier power-ups and lives
This level hands out lives to you, and way too many, and it also gives you either 1 or 2 free Tanooki suits. Things like lives and Tanooki's are supposed to be hidden rewards given out for finding them, not just out in the open. Also, you need to cool it with the coins. There are way too many of them in general, but they're also in way too big clusters. Coins should be placed in small (ish) groups, and placed in good spots.
3) Enemy spam
Enemy rules sort of work like coin rules. Enemies should be placed in good spots that challenge the player, and not in huge clusters. This level does OK i guess with the enemies, but you need to spread them out and have less of them.
4)Fitting Music
The music here is all over the place, and it really doesn't have to be. When choosing music, thing of the area that the music is in. Like the castle area, use the Peach's Castle music, and the Snowy Area, use either use something like the SMB3 overworld theme, and the Desert Section, use some Desert Music
If you need help with levels, ask around! People will be happy to help you with your levels.
Also, I'm not hating on your level, I'm just helping
