Hey, saw you made an easy version of this level, so I thought I'd give it another look!
A note on difficulty: I haven't featured any levels in a while, because frankly most player levels have gotten far too hard. Being too difficult is, I think, probably the worst flaw a level can have. VVVVVV itself often gets accused of being a difficult game, but compared to most of what people have been making with the editor recently, it's actually quite easy.
The worst thing about making a level difficult, is that it gets in the way of you expressing ideas to the player in level design. It's a barrier.
Anyway, that's really more of a general observation. Here's some specific feedback on your level:
This particular part in Tilt-O-Whirl feels mucky - getting the exact pixel position to hit that line correctly doesn't feel good, and for me basically came down to just finally getting lucky. The rest of the room is fine, but that first line feels bad.
This room, by design, has a lot of repetition, and punishes your failure harshly by setting you back quite far - two things that basically always feel bad.
Falling onto that lower platform in this part feels pretty bad too, because of a glitch in VVVVVV that causes the spike on the right here to kill you if you brush against it. This is the sorta thing that should really be worked around!
I stopped playing after this part.
Anyway, I sometimes come across a little harsh when I give feedback, so I wanted to reiterate that I think this is a cool level
. It's probably my favourite player level in quite some time, actually.