Okay here is my take on it:
I also "liked" the music but I found it to be quite out of place honestly, doesn't really give a serious impression ![]()
I also liked the building, but as mentioned before, it's getting way too much screentime in comparison to the other stuff. Maybe because it is the only scene you are really happy with and the rest is of less quality? Doesn't necessarily need to be that way, but it gives the impression.
As Acumen said, for instance foliage models, rocks, textures, the huts, the tower only get 2 screenshots. By the time I read through what you made in that scene, it's already gone again. Some close ups and ingame footage would be good here I think.
The dinner table scene looks a bit underwhelming, I dont think it's working to your benefit when you put it in the reel.
The door, the graveyard, the cart look solid I guess, but I'm not sure if that's enough for getting you a job as an environment artist.
I'm not an artist and I'm a bit spoiled by fancy next-gen shaders , but if you don't have enough "wow" material to show yet, you might want to sit down and crank out some more complex props and scenes and make sure you get it right the first time you send out the applications.
Check out some reels of other people who did environment art for the source engine. Stuff for ND, like S47ns or "Robert Briscoe's" reel ( http://www.littlelostpoly.co.uk/ ) come to my mind. Just to see what you are up to.