Your map is really nice. You have a nice house placement which will allow you to build a nice entrance to it - path with bushes or flowers on either side. Your town hall and plaza are close which again allows for a nice path placement - bushes and flowers could line it once again. If you remove the bridges that you have, due to them being far too close, you could equally put them along your river and allow equal access to the Island - putting one near your cafe and removing the one that is currently in the middle
Hope this helps. It's a great map, maybe draw it out on a piece of paper and work out how you want it to look like