This is really such a great tool! I would love if it came with island presets, though. There are only a select amount of possible island layouts, and they've all been collected into a single image before. I like to build off what the game gave me, instead of a total blank state. :)
Also, I noticed a size error: the tailor shop is currently 5x2 in this planner, when it should actually be 5x3!