That'd explain it, yeah. JPG adds a lot of noise, even at the highest settings.
Really? Yes, that would be strange. It's made for RPG Maker, so 256 was the max amount of colors (and I don't know if I used that many).
I re-saved the image from a JPG, as it was what all I had from that project, so that's probably it.
There's something fishy going on with the colours here. There are over 1400 colours, and it looks like many are used for just one pixel. Did something go wrong with saving this image? It's hard to imagine that this image, particularly since it's made of tiles, would have so many colours.
que trabajaso! te felicito! Hagamos un dibujo juntos algún dia!