I managed to complete the game!, Suuper cool concept and really creative take on the theme and limitation. Wild that you came up with this.  A couple notes:

It was a bit hard to order the magnitude of the islands, especially the smaller ones, they look a bit similar and they dont change much.

I felt after awhile, because of the between-round assistance, I kinda just ran away with the game, a little tougher in the beggining, but a cake walk in the end.