I could rip what's in the image into a tileset for you if you want.
Actually, after aligning it to a grid, this seems to be a picture, not a tileset. I can rip it to a tileset, but it will be harder to use than a normal one.
Why I think it's a picture: the door is split between two tiles, as are the windows and pipes near them. And the platforms are not aligned at all to a grid - there are small corners of them jutting out. This perspective is based on centering the grid onto the bridge, the trees, and the character, as those are the only things that actually align.