Cool! I used to draw thangs and dumb stories about this tree when I was a kid;
I love the stories about it.
http://i1234.photobucket.com/albums/ff408/BrUnOXaVIeR/ygg_zpsgmvnwskm.jpg
http://i1234.photobucket.com/albums/ff408/BrUnOXaVIeR/inygg_zps4auwxzrt.jpg
And about the model, I think you are too much worried about texturing; focus on building a solid shape without artifacts and fluid UV mapping first.