Illustrated Tree, Sketched tree with pencil rendering style

I'm looking for a tree sketch without the leaves, just a nice thick tree trunk with branches. See attached examples. The trees has to look like a hand sketched/ pen sketched drawing with nice detailed rendering (in black & white). The rendering has to be done in Illustrator (vector/ eps format). I need to be able to change the color of the tree in the Illustrator. It would really help if you could send me some examples, maybe just a couple of tree branches with a nice tree trunk (rough sketch) so I can get an idea of your sketch technique. The individuals with mock-ups will be considered first! Future projectes are guaranteed for the winner with the best drawing skills, I will need the same provider for other sketch projects. DO NOT send me the links of your portfolios with web, animation, and other unrelated graphic design work. I only need to see your drawing/ illustration portfolio that you've done on the computer, I'm NOT looking for the sketches on paper, ONLY computer versions. Individuals with too much unrelated material will be deleted. Sorry I don't have time to look at something I'm not interested in. Thank you for your understanding!