So, here we go.
1. Skin Colors:
As in example A below, I usually color their skin ~ faces, ears, hands, feet, tails, and bellies! first, with E00 Skin White, sometimes I will use E02 Fruit Pink to lightly outline the skin area.
Then I add R20 Blush, to give their cheeks some glow! I also occasionally use R11 Pale Cherry Pink, to add a little more depth to their cheeks, as in B.
2. Body Colors:
My favorite group of colors for their actual bodies is this group of tans, E31 Brick Beige, E33 Sand & E35 Chamois:
Most of these colors are what I use to color the Happy Hoppers. Example G is a lighter tone, using C1, C3 and a little C5.