Lynne -
I know nothing about your vase but I wanted to tell you that I think your photos came out fabulous 
Thanks Connie - Dencill gave a tip in the photo tips (see the thread at the top of this forum about putting your pictures up, there is a link to his page there) about putting a black card or paper to one side out of shot when you are taking pics against a light background. I've started to do that, and whilst it doesn't always work, I think with this one it has come out wonderfully.
I am very chuffed with the results.