This was really, really difficult! All fantastic icons.

2 least quality icons:
3 - The background makes the overall icon look too busy along with the text. Buffy's head being cut off at the top is a bit distracting also, but I do like the idea as a whole. :)
4 - The text placement takes away from the focal point of the icon slightly. I think without text and a closer crop would have improved it. Great scene though, which looks great in black and white. :)

1 best quality icon
8 - Amazing use of shadowing, and fantastic crop.