Here is my first ever shell challenge 4 floors, 2 pools and a fountain, DO NOT change the exterior walls, or the pool/fountain to other things, you can't remove/lower/raise the platforms already placed. DO add any walls you want inside, add half walls, fences etc anywhere you want, add more platforms on it. Good Luck #stephieshell #shellchallenge #largeshell #streamerbuild #firstshellever