First off, congratulations on releasing your first level :) And it looks pretty nice for a first, especially those underground waterfalls, very mysterious. The biggest problem I had with the level is that it was impossible to distinguish solid ground tiles from background ground tiles. You can easily die already on the fourth screen, because those things in the waterfall look pretty solid. Same goes for all those platforms you're supposed to pass by while flying with your umbrella open.
Other than that, well, a savepoint wouldn't hurt on that fourth screen, and also, the no climb wall isn't a good way to keep the player away from an area. Especially when it's completely indistinguishable from normal tiles, and is the only no climb wall in the entire level. Better construct an overhanging something there, or just let the player reach the ending in any way they desire - by umbrella or by jumping on all those platforms. After all, aren't you supposed to reward the player for making all those jumps? :)
The biggest problem I had with the level is that it was impossible to distinguish solid ground tiles from background ground tiles. You can easily die already on the fourth screen, because those things in the waterfall look pretty solid.
I did use the tiles without any outline for the background tiles, but fair point. I'll probably change them to the other colour scheme in the tileset.
I'll take out the no-climb wall, but I think I'll probably make another area to the level that can only be reached by that series of jumps
, and I have an idea for an alternative ending that will expand the level quite a lot.
Thanks for the feedback! :)