Oh God...

Those eyes...

I mean, the sprites look good, but the eyes...

ok... another eye fix..

I like the tileset so far, Turret!

Currently working on my first tileset. Not custom, but it's something I've wanted to try for a while since there's not that many 16-bit NSMB tilesets out there. (I can definitely tell there's major shading improvement since my first sprite I made in 2014)

I'm not entirely sure how I feel about the slopes, though. They're the only thing I need to finish working on. They look ok, but it's the lighter/highlight area that just doesn't look right to me. It looks too thin compared to the other tiles, and I'm not sure what I should do to improve it.

I am glad you took the time to post it on the forums. I personally accepted it on the mainsite, but you could reduce the pillowing on the grass surface. Let me know if you need me to elaborate.

I do have one question. What exactly do you mean by "pillowing"?

I'm not going to make up my own definition but I can give my own interpretation of the meaning.

I found this image online and I feel like it's a good representation of what you're doing. I'm guessing you are simply trying to port in the shading from nsmb to pixel art form, which doesn't carry over well due to the number of layers of shading you used. Basically, you want to avoid focusing the light source of to the central points to an outline, or else the darker shades will just compliment the outline and mesh with it in a sense, and it tends to look bad. Basically, about "outlining" the actual outlines of pixel art with lighter tones of color than the outline itself. Does this make sense?