If they appear pink ingame it must mean that you didn't change the block amount in the block editor, or you probably placed them somewhere where you can't put them (not on the actual tileset, but where you place your blocks for mapping).
It's kinda hard to explain but anyways, no I don't have x/y. I kinda stopped playing after dppt.
I should really send you that game with the tiles in it. But the thing is that some of the tiles appear pink inside the actual game so I didnt want them to look like that when I sent it to you... Oh did you get x and y?? If so I will give you my friend safari. ( has terrible pokemon in it though dragon safari)
Ok I have started them there is no reason to work on it really unless you have already started. I will show you my rom. I have already asked him and he said it was okay. Besides I helped him start up his game again and brought his whole team back together. Anyways I will pm you the game. I think they turned out very well.