The Temples for each element should be redesigned and shrunken down from their current 3x3 tiles to a single tile in size. For the purpose they serve they don't need to be as big as they are.
We are already stretched for space in the game and continue to get more and more decorations that just sit in storage. Some may welcome the extra space to use the decorations or just use the extra space to give more flexibility to island layout options.