Final Fantasy Discovery

Some of those tiles don't quite match the others. The chest, the three square structures around the chest, the portal, and the four stone pillars around the portal all seem to be more vibrant and/or have black outlines around them, which makes them not really fit with the other subdued, border-free tiles.

Not to say you can't use those ripped tiles; I think they just need some editing. Delete the black outlines and recolor the black inner lines, and maybe reduce the saturation a little, and they'll probably look great.

Fair enough. What games are these tiles from? The natural tiles look a lot like the RMXP RTP, but are clearly something else.