There was a lot of time spent on the head piece before Yuki actually realized she wasn't tall enough to stack it. It has a nose and perfect little rocks for eyes, as well as a few for its smile. It's even perfectly spherical!

When Vanille gives her a poke on the back, Yuki has moved onto touching up the two pieces that were its body. The request is slightly strange, but not unreasonable. This girl did not seem at all prepared for the snow. She gives a nod, and then pats her hands together twice to free any snow that's clinging to them. She unravels the scarf from around her own neck and holds it out to the pigtailed girl.