Level on graph #15 is the one with desolation tileset? I'm not sure if I remember the name correctly.

Level on graph #16 is the one where you have to climb on the right side of level to get RF PU, and if you jump from there on the right side, you get carrot down there and then warp? And you can also use fly carrot down there. Tileset Odyssey (I'm sorry, but I can't remember the name of this level either )