Something just seems... off about the tree one, I just don't think it looks that good. You can make natural ones while still keeping to border/boundaries, as long as they are not squares or anything that is a real shape, so your tree placement just seems unnecessary.
However, I really like the way you did the water and mountain.
All-in-all, it is a helpful tutorial for the water and mountains, thank you.
Okay, so I am working on learning how to connect maps, I want to basically learn everything I need to know before I start on my game. Here's my question, I want to use a dessert landscape for my first map, which is pallet town in the game, How could I take the dessert tiles from ruby and sapphire and put them in fire red? and how could I use a different tile set on a map using tile set (0, 1)? If you can't help me then maybe you could refer me to someone who could?