I think they are really good, but they look to similar to the fire red regular ones. If you have time, can you make new ones with a completely different pallete? The only thing bothering me is the pallete and probably how the grass looks a little similar lol. maybe you can tweak the grass just a little so it could look a little different. But like I said, the only thing I really want to change is the pallete. You can keep the rest the same.
I can't get any tiles from your deviant art thing, can you please just make some original to our game that has one pallete? I need it to be just like the tileset in fire red, so I need tall grass, regular grass, flowers, Big Tree, Small Tree, Hedges, Little Grass Paths, and anything else on the fire red pallete, after you make those, I'll give you some mountain ones to work on, please tell me urgently if you are going to make them because I need to know.