These look pretty good for a first try. It feels like a mix between SMB3 and SMW. I do agree with Shree on the green hills though; they could have a darker shade and have a thinner shine line (if that's what it's called). I also think the tree looks a little too blocky in my opinion, but everything else looks pretty well-done. Good job!
You didn't fix some of the things I and Mario Doge pointed out. Instead of fixing the flower and the flowers on the bushes you got rid of the flower and berries on the bushes. Now that's just plain laziness right there.
Looks quite nice! I think my favorite part of the ground tileset is the texture of the dirt. It's not very easy to pull off something that doesn't look obvioulsy tiled, and you've done a fairly decent job at that. I like how the dots don't contrast more than they have too with this palette as well. I think the edges of the land are a bit too square though.
I think the pipes and the yellow bridge thingy look really cool. I'm not big on the hills, trees and other grass elements though. Their shading is pretty bland and boring right now.
The SMB3 boxes should have diagonal shading in the top right and bottom left edges, I think.
I apologize for saying I'm for sure releasing my castle tileset. Due to IRL stuff I don't have too much time to finish my graphics in time. I'm sorry, I think this won't happen again.Insert some pun here
You were posting the same thing all the time lastly, but it has some variations of vocabulary. Anyways, this kind of feedback isn't really constructive and it doesn't give any criticism, either. Quality over quantity is pretty much a better way of giving everyone feedback. Though, I appreciate your opinion about my graphics!Insert some pun here
I changed my mind and I'm continuing working on my castle graphics since all the C3 threads are not closed yet. Thus I'll give some screenshots here when my graphics are done. Feedback isn't required, but it's appreciated nevertheless.Insert some pun here