I have this book too. :)
And while I love how the illustrations are so haunting in their childish simplicity, I found the storyline a bit, er, soap opera-ish. Also, I thought the story to be more in the style of magical realism than surrealism.
I enjoyed your review of The Graveyard Book. It actually reminded me of Harry Potter in a lot of ways - like Bod being an orphan and being destined to grow up and do something magical and great. (I forgot exactly what. My memory is so bad!) And although I imagined Silas would look like Snape, I thought his personality more Dumbledore-like since he never lost his temper, often said stoic things, and was so wise and kind. Not to mention impossibly old.
I really hope you read Coraline, if you haven't yet. If you like The Graveyard Book, you'll enjoy Coraline as well. And I hope you make a review, I enjoy your opinions!
: )