@ppooookkkkkkk:
Right of now it's incredibly frustrating if you go south since there's a dead end and a load of grass. Listen to PokeInfuse, as it is now you only have to take 3 turns to get through the map. That's even less effort than on the first route in FR/LG!
Take a look at the map I posted earlier for some inspiration. Or even at the routes from the original games. Don't make your paths too wide, and don't create large patches of grass. grass doesn't make the route any more difficult, just more frustrating. Create a maze like structure to make the map more difficult and interesting. Make sure every accessible part of the map lead to has a purpose.
I've drawn you something you could use as an example:
the red path shows a curvy path the player could take, with a few branches that lead into dead ends where he/she can find items or whatever. the brown lines are ledges, with the pink lines showing the direction in which the player could jump. green patches are trees.
Hope this helps you!