hm, well for smooth i would say that that's probably the body smudge that i did. and for clear, i'm not really sure, XD. probably just picking colors that contrast against each other so it pops more.
oh, i just use a 10-20 strength soft round brush and duplicate the horse layer, then transparency lock the one on top and smudge, following the body's lines. then i decrease the opacity of the top layer to make it look more natural.