Nice retro work I love it. The only thing though, it's the tree, it gives an visual effect like it's hollow at shadow side. Oh another thing, your rocks look like regular iso tiles in GBA/WS games which is adorable, but your house is not very iso. In the old games, building are pretty like that but they were generally smaller like castles on the map in FF, so it won't become eye catching, but your cabin is quite big. Still retro nice colour I love the style.