The bottom of your bg thing doesn't tile 100%

I would wait with making tiles like that (tile edits/transitional tiles), Fire_Byrd, until people've edited them a bit so we know how they'll look like. It's only the 2nd of September.. platform edges can be useful in determining how things will look like tho

Also, it seems nice to post every change into the full tileset, not as seperate tiles, at this time, since it gives a feel for how the tileset will shape up now there's not really a large start yet..