Maybe you could reduce the amount of grass (cause the wild pkm may have eaten it) and have patches of taller grass. If the tiles are availble.

The only place I imagine you might have consistant grass of the same would in fields or farmland.

Can we get more info about the route? the terrain? Is that a lake or a river?

I don't know if this is any help.

The first map is a general route which leads to a city.
The second one is also a general route but there is no city up, left, right or down in that map.
Also decreasing the tall grass could make the map look bland..just imagine it as a really grassy untouched area 
Also the stairs can be as we wish, they aren't backwards those are the correct tiles.
Thank you for all your reviews!

Its basically some of my originally created maps with the help of PWO map editor.
If you do have some time to spare, please comment on my maps, the areas I need to improve and other unpleasant things you find in these maps.Both of them are routes, I assure you they are originally created by me.Will add more maps as I make them.I know I need the fix the patches in-between the grasses, will update it as soon as possible.
Have a nice day! ^^