Funny, while I was looking at those you posted on the Stripped thread, I almost asked you to start a thread to show us your creations, and here you have it.
I would buy Numbers 2, 4, 11, 12, and 13! They seem to be enough different from other intros to merrit consideration in my book. I like the broad falls you have going. That number 11 blue self, sure seems to be a nice blue color. I think Number 12 is my favoite of them, such unique colors in the standard, and nicely formed. Thanks for sharing them, and if you have more, I'd enjoy seeing them.