BUMP. Ok, it has progressed a bit since the vine- here is a tree grown by a phone:
I drew the leaves in Microsoft Paint, but the bark is real bark from a picture edited in Gimp for the shadow, seamlessness, and color. Note the draw function knows when to 180 the shadow in the right direction so shadows aren't on the top of the branches.
Not all of the trees look this good. Many are scraggly or unbalanced. Meh, it's a work in progress!