The first area, even after tiling, felt empty, lifeless, and hollow.
I added glowing mushrooms and auras. It made things a little better. Then I decided to add another layer to the background of vines. I got rid of the auras though, the mushrooms were enough glowing for me to handle.
I think I'm going to color it blue or something else that stands out from the foreground... But I like it. Also, take note of the new geemer palette!