consider making it "Venice." what I mean is make the entire island flat and then create LOTS of rivers. next, move the homes around so none are very close to resident services to make it look like all the shops are in the middle of the island. also, add a little market. or 3. or 4. I added 4 markets. place all the shops close to the middle of the island. and any place you don't have anything, (btw I suggest doing this close to the northern beach) add orchards, flower gardens and other stuff. If you want, you can also and some random waterfalls here and there. I love how my island turned out when I did this. It does take a lot of bells and time, but it's worth it!