I played it and it doesn't look very good if I'm honest. The puzzles are all either too simple or difficult enough to not let me figure them out (that or they have no solution).
If you're working on a puzzle hack, you must test it harder than when you're working on a normal one. You must make sure there are no ways to break your levels and also no ways to get stuck. On your case, I found mainly places where I can get stuck and took pictures of them:
Self-explanatory. Also I couldn't figure out this level at all, so I used the shell to make a shell jump and the springboard to jump from the second cement blocks wall. I hope that's not what you had in mind... Shell jumps are considered a kaizo trick and they must not exist in "normal" hacks.
Also, don't really get what that Yoshi had to do with the rest of the level... I can't get past the first screens riding it.
You put a reset door on the level's very beggining, but if I get here I have no way back. Not sure what this part of the level stands for...
Nope. Not fun.
And this is where I stopped. I couldn't find the solution for that level other than cheating, but since they're not a friendly way to beat a game, I decided to stop.
Yeah, there are many spots of your levels where I can get stuck, meanwhile the reset doors are almost of no use. You should test your levels harder or hire a tester
before deeming them done. Besides, try to be more criative; the ones levels I could figure out weren't interesting for me at all. It's alright for the beginning of the hack, but don't keep track on it. Try making them always more interesting and complex, and of course, resetable and beatable.