I wasn't so sure about it as a tileset, but seeing it in action has changed my mind completely - it's cute, and it has a really sweet retro feel to it. the tileset looked way too bright and garish, but it actually works well when mapped.
so are you planning on just editing the whole of that tileset, or are you going to add some totally new tiles as well?
first when I saw the tileset, I thought......it must be a joke!! these tiles are so badly done!
but once mapped it looked.....really very good, it has a retro feeing and it looks really cute^^
the pallette also are nice, it is much better than i thought^^
if you need any help, I really would like to help you, I find it really interesting, I am a great tiler, thats what other say^^ so if you want I'll help ;)