Here are the Sea Mineral Mittens done in Knitpicks' Palette. I used Calypso Heather and Sky for the main hand pattern and then also all the shades of purple, all the greens, including the new heathers, and a few shades of blue.
I'm too impatient to wait for DH to take action photos so here is one mitten on my hand. I made a few changes to the pattern: I added a pattern repeat before the thumb opening, I made the mitten and fingertips a little flatter, and I moved the right hand thumb to the opposite side of the hand to keep the row join on the outside of the hand.
Spillyjane's free pattern for these mittens is HERE.