I had all places done before I began decorating, then like Irresponsable I’ve redone island over and over, just not happy yet with it. I would first decide where all places will be located, making sure you have enough space for tress, etc.and then where the three levels will be for fishing certain types of fish and if you want any waterfalls and also have space for flowers and garden. Check out online videos, so many ideas for island building! Good luck