iv'e finally decided to finish this tileset, and now there it is! (there's still no background because i am too lazy to make one, if you guys really like it i might consider adding one)
Oh hey, you released it. As I said before, I really like it. One thing you could do to improve it aside from the things I mentioned before is to make the sceneries darker. They look too bright in contrast to the rest of the tileset. I recommend using cooler colors rather than colors that are too warm.
It looks pretty good! But I don't feel that it fits SMBX's style too well compared to other things, because of the shading on the scenery.. It would look really good in a different game, like an indie game or something.
The fact the fill is completely black makes it look very empty, but that might be amplified by the lack of a background in the screenshot- Some little details in the fill would make it look about 34% better. Pretty nice regardless.
I'm the only one who thinks that details (BGOs) don't really fit into such an tileset? Especially crystals, weirdly. Why mushroom bgo has no outline (for example snails do have outline)? Just wondering.