Assassins Creed Movie 2017 Fan art

Hey, there; this is a study based on a promoticonal image from the new Assassins Creed movie launched at 2016 december. I not exactly a master on realistic arts, but I see on this a chance to make something new. At the end, it was a great challenge! So, if you like, post your oppinion about the artwork and the making-of video.
Thank you all!