Yah lighting has to be the biggest issue in all maps you have to nail it or else it makes the map look like it was thrown togeather at the last minute (which is far from the truth)
I like the first screen tho i do agree with everyone that Badlands was better in the bright orange canyons. Mind you Source is an upgrade :P
Good luck with proping. To remind you. its called badlands should be some like decapitated Cars in the canyon.. make it look like it drove off a path or something