It's much better now actually. I would suggest changing the tileset to have a more diverse collection of rocks and trees. It isn't a problem since it's really repetitive, but it really adds to the map when you went through the trouble to make it look more polished and professional.
I always had a problem with the R/S/E mountain tiles. I don't know if that rock formation on the bottom right is correct or not, but the "bottom" tiles certainly look incorrect. I wouldn't know though, I'm more used to Firered tiles, as you can see here.
http://www.pokecommunity.com/showpost.php?p=5715832&postcount=5493
Oh, and did you mean to make the back of the gym accessible? I can see a one tile wide spot where you can surf through the left side of the gym.