Hello there,
I’m looking for help regarding my WIP. The illustration features Ned Stark (Sean Bean) from Game of Thrones. I tried for a crossover with the famous Obama “Hope” Poster created by Shepard Fairey. I do this illustration for fun, I’m not a pro, so please be gentle 
I want to achieve as much likeness with the original photo (which is a well known screenshot from the HBO TV series) as possible - see attached. My goal is to make Sean Bean / Ned Stark instantly recognizable.
I’m looking for general critique, but I’m especially interested if you think I got the jawline and the mouth right. Jawline: As you can see in the original photo, the face’s lower outline is in shadow, so I had to decide where to “end” it. I wonder if I got that more or less right. Mouth: same here, it’s kinda hard to get right, there’s so many soft shadows in the original image (see below, copyright held by HBO).
Thank you for taking an interest.