Well, I might as well show these here since I came back to hacking xD
A night scenery bonus room:
Most generic grassland:
There's also two letters from other characters than Daisy but they only use a different palette, level background color and emblem.
Snow Levels Tileset:
I took the one from NSMBU. I'm still trying to make the snow on top blend in less with the dirt tiles.
Misc. redrawn Tiles
Yeah, I just redrew things like the Bullet Bill Canon and also recreated some NSMB blocks and made giant versions of them.
Feedback is always appreciated
Yoshiegg Powerup Expansion
It's a patch about getting powerups other than a mushroom from Yoshieggs...
It's currently fully functional, but I'm still taking suggestions and want to fix any possible bugs...
I don't have too many problems with these graphics. It's a neat set and it does capture the style of NSMB. However, it would be best to get rid of the pixel hugging on your slope outlines. Refer to the reference image:
Hugging doesn't look great and definitely makes things more jagged than they should be. It's not very noticeable on a small scale but when someone is playing in an emulator, with usually 2x or 3x scale, it is very apparent.
majora211: I like those graphics. I'm curious to see what the rest of the tileset in that bonus room is like. The snow tileset seems like it could use a few more colors in the land pattern, though. Also, those first two screenshots would look even better with Layer 3 backgrounds.
TRS: The same applies here. The land might be better with a few more colors (and I think the bottom edges should be darker), but overall, it looks pretty good.
RaindropDry: ...and here. The land is good, but maybe a bit more detail could be nice. As for the background, I'd try adding some sort of pattern to it (leaves, dirt, whatever) instead of just having everything a solid color.