My advice, is (and I know its annoying) more pictures! There is only one angle of the jar in both pictures I looked at. I am also not really familiar with what cold cream and vanishing cream do. I adore all things vintage and these look classy and elegant, but a little simple. How do you package them? Putting a picture of that, and maybe a jar "in use" on a vintage styled dressing table would be pretty sassy :) Have you considered selling samples, in small containers, for the people like me, who aren't familiar with something from a past era?
hope this helps, best of luck!!
<3 erin