Bit of an earlier concept I did at the start of the freelance, you can tell from the mort earth-looking creatures like the bunny/fox thing and the flying lizard. And a much rougher looking sketch environment.
The idea is to have this area atop The peaks that are full of hollow towering spires of stones that funnel the strong winds through its tunnels, and in-between these towers are many floras that grow like air plants where creatures seek refuge in.
Most of the creatures living here rely more on gliding than powered flight, having a heavy compact body when not gliding, but being able to expand parts of their anatomy into a glider.