I see that this is basically an off-shoot of the "Ash Reborn" map, or vise-versa.
Once again... what is with the triangle in the middle, and if there isn't anything behind those clouds, why have the clouds stretch down that far? Looks a tad hideous.
I think the roof - depending on how much jet you have - is pointless, and would look much better if you adapted a design without a roof. The sides are necessary for this map, but the roof should go.
I think in this map, the black clouds are pointless. They are pretty out-of-place here, and I know they are just hiding a roof
.
Maybe with the lights beams, turn the opacity down a tad, but that is just personal taste..
I like what you did with the bases, although - once again, depending on how much jet there is - it looks like the bottom route would be the pick for most people. The open middle makes for a very unsafe route, but if you could just fly over the middle, I can't complain.
The shading on the polygons in the middle, under the little structure er whatever,
could be darker along the polygons emerging from the cave.
