That looks a LOT better than the original. But you don't want tall grass in a small patch like that unless it's reachable. Granted, people won't cut grass back there, but this is a game, not real life. Also, the skinny trees. UGH it must be me, I can't stand them, though, ever. Probably why they're not in before or after Gen III LOL.
Try this: remove that whole section up there with the grass and skinny trees. Instead, use basic, large, trees to fill in the one tile path, and to file in the place left by the skinny trees. It might look a little square then, so try removing about 3 big trees you just added.
Or, you could keep those things. Don't feel obliged or anything.