I make preview images for comics for update announcements and such, and usually, I just use an image from the comic. For this comic, however, I felt literally anything I could show from it would spoil the comic.
Spider vampire "huh" face? Too spoilery.
Spider vampire looking up and to the left? Too spoilery.
Spider vampire... Well, just LOOK at panel three. I mean, really. Even the angles on the action lines are too spoilery.
As such, I totes cheated, and used an image from an earlier comic as the preview image for this one.
(Don't tell anyone)