You're right about the cobbles: they're pretty heavy on the eye, much as I reduced their contrast. I could do something similar to the way I layed out the grass, what do you think? And yes, the forest is just makeshift with the tree tiles I currently have.
I think I should turn the cobble/dirt tileset inside out, which should give me the same result as for the grass edges. Talking about grass, you're right, the top right corner is for showcasing the night tiles.
Okay, these are all quite easy to adress.
Thank you, Wes!

(by the way, are you the same Wes that was on the Spriters Resource?)