Despite your problems...I'd say there is a lot of good things to comment on here nonetheless.
I like the uniqueness of the scenes/characters you've chosen. Most of these i've definitely not seen anything like before.
I adore 7, and really like all of the lindsay and mel ones, but particularly 12 for some reason.
15 and 16 are both great. They make me want to take a closer look at the screencaps from that scene and see what else could be done with them. That sounds wrong, I love yours, i just mean, it reminds me that that scene is sort of underutilized in icons i think. I'm used to just a couple of iconic images from it. And these remind me there is so much more to draw from, as you have done. And I haven't felt like playing with graphics in forever, so thankyou for that.