I have run out of buildings and haven’t finished clearing off the island. What are my options now?

Replay mastered scenes to earn the coins needed to buy high-flower decoration. This will allow you to keep advancing your game, making use of the limited space you have. If you buy too many low-flower decoration, you'll soon run out of space, and either have to store or sell them to make room for high-flower decoration. Make sure you renovate your landmark daily and choose flower rewards in Jack's delivery for additional flowers.

You can store some of your items in the ship on right side of the island to create space