The tilesets I used in Phendrana Frolics
Shores: A combination of rocky/sandy Maridia reskinned as snowy, combined with Lower Norfair ruins.
Labs 1: Mostly Wrecked Ship repalette, but with tiles from Ceres and utility room.
Labs 2: More sparse Labs 1, but has the massive monitors from Ceres and some other Ceres tiles that aren't in Labs 1.