I just bought this bundle! Looks amazing. Thanks for doing this on 32x32.
By the way, I read in one of your comments that you were running out of ideas for new tiles. If it helps, I think a tileset similar to this but with a cyberpunk atmosphere where you see the neon signs and buildings in the background it would be awesome.
Also maybe releasing sprites that match well with these tilesets would help us the programmers. (having to pay extra for that)
Thanks for your hard work. Your collection is definitely the best you can find out there.