Oh, I didn't mean for you to think you had to cater to my tastes for this auction! I am sure it will do well. :) But since you asked.... Well, I don't know much about vintage, but I am not a fan of white or of turquoise. I do like vintage crystals - in any color. I also have no use for cabs. I like amethysts and sterling silver. I don't like base metal, anything gold colored or most plastics. I like a lot of the transparent or translucent gemstone beads. I love anything floral or leaf shaped.
One main thing that I think would really improve your auctions is better pictures. The pictures you have up make your beads look dirty, and I know they are not. Colors don't show up very well - for instance, the amethyst butterflies you have on another auction look dark brown to me, as do the amethyst beads. This makes me hesitate from bidding. I'll bet you get more bids if you fine tune your pictures a little. :) I know you didn't ask that, so feel free to ignore if you like.