For my card I used broken china, mowed lawn and ground espresso from Distress inks, I think they match really well to the SU ones.
I've made a sticker sentiment by applying double sided adhesive from Elizabeth crafts on the white cardstock prior to diecutting the sentiment die.
Matching sequins and the coloured panel was made with the stampingblock technique, where you apply inks onto a slick surface (the stampingblock, but I;ve also used rulers, cd cases, tiles etc anything non porous) then I sprayed the ink with Perfect peral mist to give it some shimmer. laid the watercolour paper on top and carefully rubbed the back of the watercolor paper to give the inks a change to soak into the paper. then quickly lift the paper and let it dry,
Sometimes I go back for seconds and third dips, but for a CAS card I think once is plenty.
For more information on the CAS Colours & Sketches Challenge, see this