Ooh! I've been wanting to do something like that myself but I wasn't sure how to get into contact with anyone. Then again, I'm sure a lot of people are in my boat. I really hope this goes well for you! ^^
If you're going to be printing this into a book as a spread, keep in mind that the center fold is going to eat up some of your drawing, so the sorcery 101 logo would get distorted and cut off. If you can, it might be best to rotate it the other way and shrink it down slightly so that it fits onto one page.
Danny looks adorable. I really love the attention you paid to the light source!
Heh, I like how Danny's lighting it with his thumb. That's totally one of the first things he learned how to do, isn't it?
Also, I see that he has not only bought a new pack since he left the house, but has smoked nearly all of them before having returned. I'm assuming so, anyway, since that looks like a normal label, rather than the DEATH STICKS label Ally uses. Either he hasn't gone home in a while, or he smokes more than I thought he did.
(Yes, I do realize you made it a normal label because people unfamiliar with the comic wouldn't understand. I felt like saying that anyway.)