Both shoes now have the base green color. I haven’t colored the tongues yet because I’m tired of painting already! However, I colored the inner of the checks black. I’ll have to reline the outer check (and a few stitches) with white, due to the imperfections of the check stitching (the touch up will help round out the hard edges). The decision to color the check might be questionable, but I’m confident that it’ll work out ok.
And here is the updated mock-up