I have been playing with the new Iluminate Glimmer Watermark Stampin' Pad that is in the new Holiday Catalogue. I just love the finish of the ink on the Midnight Muse cardstock.
I have used the Fabulous Florets stamp set, Comfort Cafe DSP, Naturals Ivory and Midnight Muse cardstock. From my playing I found that the Illuminate Ink looks better on the darker cardstock and with a more solid stamp image. This is just my preference and what I like the look of but I suppose it depends upon the effect that you are trying to achieve.