>>33230145Looks good so far! The layers cliffs are nicely done. But how about slightly changing the palette to make it feel more tropical? And adding a different grass texture? Even GSC had different tilesets for Johto and Kanto. Also, your rip of Pia's vine is one pixel too far to the right.
Will you be adding more places to explore? Haven't played S/M myself, but I've heard they didn't both to add houses with NPCs just for dialog, so towns are full of locked buildings with just a few plot-related ones you can enter. Plus you could invent areas for the unimplemented sites on the official map, or connect the islands with water routes instead of direct warps.