She looks so freaked out. Really well done. Her expression really gets across that "oh my god what happened to this poor bastard that he ended up half dead on my door in the middle of a BLIZZARD?!" feeling perfectly. Nicely frazzled and all.
I found this randomly once on the main page, and I wanted to see it again and say that this is awesome. I love this picture, even though I have no idea of the story behind it.
Awesome, seriously. This is a sweet picture (sweet as in emotionally, not as in the slang term).