I'm sorry, I didn't get much sleep.
What I mean to say is your color choices just don't fit. The purple gray I'm *not* digging, and even if its like everyother rpg out there, I think instead you should use light yellow for the top of the color ramp of the tall grass. The random coloring of the tall grass doens't work. Just tone down the difference of the color ramps. Your sprites have awesome coloring, but the tiles are so random and all over the place in colors, it doesn't fit. Everyone else probably praises you for it, but it doesn't work, it's too, not annoying, but something similar to that, and I think it should look more traditional. Your probably going to disagree with me, but the coloring job on the tiles specifically is just, well... awkward. If I have to do an edit to explain further I will, because it could be so much better.