Wow, from technical point of view, it's quite perfect. Amazingly detailed hair, phones, eyes, and well, everything. I love the snow on the railing. It looks so real. And the little snowdrops in her hair! You thought of everything. :O
I just think her neck is a bit too long. Or maybe the transition from neck to spine could be less curved? It just looks a little unnatural to me. Other than that, I have nothing else to add. Shading is awesome, too!
Overall, it's definitely an improvement. I suppose you've already gotten used to the tablet well enough, huh?