Well..
Very good indeed, and an excellent progression from your previous episode. I like your story thus far, your plot (overall) seems very well thought out I could see this being picked up and actually seeing a commercial release of this.
I did, however want to comment on a few things.
1. Continuity, the transition from episode 1 to episode 2 isn't very smooth (granted, I did not read the manga just watched the episodes. For all I know it is explained there), so I am wondering how he goes from leaving the building in the desert alone to being in an elevator going down (from the sky) with a companion.
-Scratch, read the manga, not there.
2. The music in this episode 'fit' much better than in the previous episode. Very glad you took into consideration, it leaves the episode with a much more serious feeling.
3. The voices were also a nice addition, and I thought they suited well. Though the wraith's voice was a bit hard to understand at times I assume it was meant to be that way.
4. Ok, so I went and checked out the Manga too. Excellent! However, the manga has a bit more exposition in it than the episode, like talking about where they think the wraiths may have came from and how the wraith died was more clear as well. I did like some of the extra chatting in the episode, but I think the exposition shouldn't be left out.
All things said I can't praise this enough for the wonderful story and piece of art this is turning into (well why didn't you give it a 10? because as awesome as it is it still has some areas that could use work). I definitely look forward to the next episode and really see this going to great places. Keep up the great work, and enjoy your well earned praise. An easy 5/5 and 9/10