Cool, I love that style. The shading is nice.
Although:
You should have put some cols or something else to cover the edges of the tunnels background, it would look better.
Other than that,
The col constructions under the flag platforms are kind of weird, I can't imagine something like that in real world
You should have used default tree sceneries instead of the veg ones, it would look awesome with that defaultish map layout.
Anyways I love that map, but it could be better
In your next maps try making some more detailed paths, not just almost flat terrain and two platforms over it.