I think its a good map. Re-Tail is a good distance from the Train Station and there is plenty of room to work with.
How many rocks are there? Are they in good locations (meaning not in the way)?
There's one on the lower left corner of the square, one on the right side of Re-Tail, another on the right of Bettina's house (not a dreamie), another at the bottom of the train station, one is on the lower right of the town house, and another by Merry's house, close to the river. So the rocks are in okay spots.
I might place my house on the upper left corner, next to the beach.
You've got a nice layout there. Where are you planning to place your Mayor's house?
This map is pretty identical to mine, except the re-tail/town hall/plaza are in different locations.
I personally love my map, so I'd say keep it.