After gushing about the first portrait, I have to admit I like this one a little more.
As you've already said: "Spunky age-appropriate Pocahontas/Matoaka, sans feathers in the hair/European imagery/other superfluous details. This is closer to accounts and illustrations of Powhatan dress from the period, and I kinda think it's closer to the Disney design anyway. WIN/WIN." Not much else to add after that.
Once again, though, I also love the pose and attitude of her body. Love the nonchalance coupled with her athleticism and spunk. She also seems to have that look of childish mischief, which seems closer to the movie and the historical girl anyway. Just a great portrait all around. ^^