This drawing seems an ancient bonsai with a beautiful bark and strong branches.
I love bonsai and I could tell you that it is also a Juniperus Chinensis, probably my favorite tree.

I would like suggesting you that I will have a contest on my account soon: on March, 3rd I will have my First Steem Birthday and I will make a contest where I will show all my portraits: there will be a lot of prizes and if you would like to partecipate with a drawing (also easier that this one) it could be a pleasure to me to join you!
It could be a good way to show your art all over Steem Blockchain😉👍
Let me know!!!
Thank you and Steem on!!!