King of Wolves

Mobile Suit Gundam: Iron-Blooded Orphans is a 2015 Japanese mecha anime series and the fourteenth installment in Sunrise's long-running Gundam franchise.

This is a fan artwork based on the animated series in Japan called "Mobile Suit Gundam: Iron Blooded Orphans".
It is said that the Barbatos Lupus Rex, which is the name of the robot/mecha, means King of Wolves.

This art work comes with a short GIF file on my work process in creating this fan art.