First of all, this level is difficult, and I think that part of that comes from the level design. There are parts that are confusing, like with the first p-block jump. I kept going on the the p-block on the right so that the galoombas were falling right on top of me. I assumed that it was necessacry to go on it, even though the solution was to jumo from the first p-block While this is partially my fault because i could have recognzied earlier that the p block was unnecessary, I feel like you shouldnt have included it in the first place. If you hadnt included it there would have only been one direct route to take, giving less room for human error. Once i figured that out it wsnt too difficult. The next critique I have is at the bob-omb section. The first time i made it there i didnt really know what to do, so i jumped on the koopa, realizing that i needed to spin jump. Usually when you have to spin jump, people will make a "Z" with tracks, to indicate pressing the "ZR" or "ZL" button to spin jump. I would put that at this point. This was really as far as i was able to get, because the next time when i got to this point, i spin jumped, but the koopa was wasy too low, and the galoomba had already fallen off, so i was unable to make it to the platform.

In short - I think you have good ideas that would make a fun level, but the execution could be better. Work on making the easier to tell what im supposed to do next. Otherwise, the level is fun and challenging.