Biomechanical Mandalorian Assassin

I am uploading here the artwork which I did for a recent PCDA Mandalorian challenge. It is a fanart, non-commercial and non-profit challenge announced by PCDA (Plovdiv Conceptual Design Academy).
I wanted to create a concept of a biomechanical assassin, Mandalorian type, who is a good-hearted yet fierce warrior who would not decline a plea for "assistance" in a just cause.