I got the idea of where to go, and was able to ride the fan up and recollect the purple cube as I went.
I was able to skip the end though, and there wasn't any gameplay after collecting the final cube (s). You might consider moving the end portal so that it's at the end of all the gameplay. But overall a nice level! I didn't die, but you might want to put in one more save stone.

it might just be that I'm too blind to see the intended path, but I strongly doubt it since I've completed like every level in this workshop.

The design of this level is beautiful, and I appreciate the choice of music and skybox.

But gameplay wise this level is confusing and frustrating. What the hell am I supposed to do?