Massproduced some islands while I had the stuff out. Needs some blend tuning here and there, but serviceable. Wet paint causes base warping in the wood in places where I didn't glue on cross-grain pieces. Masonite is probably better as it has no grain.. though neither has cardboard and it still warps. Beach coasts are too homogeneous. Some should be boulder/rocky or steep cliff shores. Or long beaches. A 1:900 tree shouldn't be too hard to do. A pin in the styrofoam and some flock.