There's a lot I like about your levels including the dialogue/stories. My favorite thing has to be the original characters. I like levels with exploration, puzzle elements, secrets, and stories. But, it's nice to have variety. Even if levels don't fit my preferences, that doesn't mean I won't enjoy them.
In this one I cheat-saved extensively, but the only jump I couldn't make was the one ncrecc mentioned. I made some trick-jumps I've never made before. I played through twice, so I could get all the CGs and those mushrooms --was there any point to the mushrooms? I wish I'd known there was an easy version before my second trip. Guess I'll need to make a third.
Edit: I've played the easier version now, a lot more playable for me. I didn't cheat except for screen x1025y1003. Those are two very precise jumps stacked up, to finally make the first jump only to fall back below it is harsh.