Looks great so far, though the only thing I can suggest is to not decorate so close to the edges, I mean..don't have walkable cells so close to the edge. Because when you do, players will see the 'black abyss', you dont HAVE to do t hat, but I feel like it'll make it look better ingame.
I like the big tree, the only thing I think that doesn't fit is the fountain, but thats just because...I dont like that fountain haha. Keep up the great work!