Oh my good, that's brillent! What I use of canon and what an ehtically interesting and yte icky situation.
The last three panels in particular are killer! The art is great. I love the trees, espeiclaly the colors in the trees. The angels you choose to show Harry and Nspae at are great, and I love the little touches, like the details in Snape's clothes and the texture that you've added (via photoshop it looks?).