I think you should change more things about it. Here we go...
1. Put trees around the WHOLE town. Like in this image.
This is a route in FR/LG. As you can see, there are trees SURROUNDING the whole route. ALL the routes and MAPS in EVERY MAIN GAME(including the old Gameboy Color and Gameboy games) had trees around the whole map, like this. Try changing it.
2. The space looks much better now, but still, it looks plain. Put more flowers and dot random bushes and trees here and there. You've done this already, and it looks very nice. But do it more. If that approach doesn't work, try putting more houses.
3. I can see quite a few tile errors. First, the bridge going over the lake isn't a bridge. It's a mountain. Try to put a bridge tile. Second, on the same bridge, there is no staircase leading down the right, and it looks weird to say the least. Make a custom side stair tile, or add more tiles on the right to make the bridge mountain larger, then do a loop and make a stair in front like the one in front of Oak's lab. If you replace the mountain with a bridge, you won't even have this problem. Finally, the huge mountain has a few errors. I have marked them on your map.
First, at the bottom left, the second and third level of the cliff just END. Make the loop just like the first level. If you need to, redesign the whole map and move the lab somewhat over to the right to cover up the empty space and leave room for more levels of mountain on the left side and a bigger garden. On the bottom right, make the mountainside loop all the way across the top and connect to the top left hill where the lab is on. At the top left, behind the grove of trees, there should be a tile like the one on the top of the following image. That way it looks like the mountain ends.
Also, in the same area, look at the cliff walls on the side. The first level should end one tile up and loop around using the tile I told you about.
4. The river. Change its width and make it narrower. I like how you changed the waterfall, but make the river narrower. Also, make the whole mountain less square. Give it... interest. Make it zig-zag this way and that. A real mountain isn't exactly square, right?
5. Change the bottom, where the sign is. It's bland. And plain. When you edit the mountain and make it zag, make it bigger and have it take up lots of space there. And add trees. And dot random scenery here and there, such as bushes and flowers. That should make it look better.
I'll keep on checking on this.
~AKAP