Ok A small update.
I'm not sure if I like the forest but it's hard to work with such a small trees when each one is just a few pixels. maybe someone knows of a good forest texture/brush I could use? Something which looks good on a small scale.
But I like the big mountain I made. I didn't expect it to look nice ^^
Ps. I got the pattern from Subtle Patterns | Free textures for your next web project.
Pss. I posted too fast. A few minutes later I made a different forest pattern. it's unfinished b/c I have to go to work. Still I think this new one looks much better.
Psss. And another small update. I want to ask you about those hills with fields on them. they still feel a little out of place. I love them and want to keep them but there is something off imo.