I know there was a time when people would consider you a thief (still is at some levels) when you traced an existing picture and made it your own. I don't want to go into the Warhol crap, that's too old and boring, I rather pick two more contemporary examples. Disney with their rotoscoping techniques. Tracing the human body in order to make animations seem more fluid (now they do it with computers and 3D models) and Greg Land in comic books doing traces from artbooks, magazines, internet pictures etc. Boris Vallejo does the same thing but he has his own models so nobody complains.
This has opened the door for others that lack the artistic ability to draw from the head to actually trace the pics. There's something good and something bad with this method.
Good thing is: you will improve on your decision making skills.
Bad thing: you'll rely too much on a model to draw making you dependant.
There are more good and bad things but this technique is actually recommended for those that can't draw from their head but really want to. When I took an art class we had a model, actually I had 2 classes with living models and 1 with random stuff. (basic drawing, artistic anatomy and advanced drawing) after I was done with the classes I knew how to draw the human body a lot better but I couldn't draw from the top of my head like I used to. I had to go with some drawing books to re learn how to create something you're not seeing.
Anyway here's a sample of what you should post here:
You don't need to post the picture in the middle, I'm ok with the original and the one you finished.
