Beautiful. I would like to see more of this.
Viewing post in Winter Town Pixel Art Tileset comments
House tilesets like the RPG maker that you can assemble yourself or you can add more house versions. Then bushes with snow and objects like boxes or barrels are always good too. ^^
And otherwise a spring/summer/autumn package.
Caves, forest, swamp or mountain packages would also be great.
But please don't make it too expensive. xD