Models by Reaper, Warlord and some proxies from Descent.
Materials: Polystyrene for the plateau and the stone walls. Custom wash with ink, dishwashing soap and acrylic for the rock face. Flocking material by Army Painter. Trees by Woodland Scenics.
What I’d do differently: My rock-sculpting technique was very early and it shows, it’s pretty unnatural looking. The flock is fairly random too, which isn’t necessarily a bad thing, but it may have benefited from being better planned. And that square structure doesn’t help for a plateau meant to be natural or at least to have felt the effects of weather for a long time.