We've now seen Dark Sun buildings, pillars, stones, and now cacti. Toss in the tentacled & jawed creatured you made, and I gotta say: Your players are spoiled! These game sessions have to include some phenomenally immersive sets.
My players all deal with dungeon tile rooms, a few hirst arts walls, and a lot of dry erase marker. Though the online game gets some half decent scenery. There are a few rooms that I spent the time to make nice looking images, but then photoshop is ever so much easier than molding green stuff and clay.