Cool screens, I always liked redrawn graphics, but I didn't say about it and didn't use it myself as pretty much a group of people don't like them much. They could have more decorations, you have placed only one tree platform. It would be great if you would place some seashells inside the dirt!
Another very nice level with a neat gimmick used quite well, though I do have a couple of minor suggestions:
At around 0:30 in the video, you can barely see that Thwimp when he's at the top of the screen, which is sort of unfair if you end up running into him up there. Not a really big deal, though.
I'm also not a huge fan of the tree branches being completely passable in the first part of the level while they act like ledges in the second part. Although you do indicate that you need to go up in that part, the player might still not know that those branches are actually ledges. I would probably make all tree branches act like ledges, but I'm not sure how that would affect the design of the first part of the level. Again, it's not a big deal, but it's something to point out.
Overall, though, I do still like the level. Great work. :)
Flip Forest is WITCHCRAFT I swear
The Flip Forest level's gimmick is crazy. Is that something original or did you download the sprite (if that is what it is) or what? Either way, nice job with the level. The map its on is looking good too.