A fan coloring. Great stuff. Snyder is da man. I read basically every Post Crisis Wonder Woman run. All I liked to completion. Warrior Woman is on-brand.
Half of my DCEU post is already here (the Phil Jimenez run or stuff like Dead Earth could also be named) and Snyder´s team is made of legit DC scholars.
Not quite on my "level of expertise" but true fans nonetheless. Basically every decision by them is based on canon. Outside of some of the Aquaman stuff, I guess.
The "sign language" seems to be in TSC. Snyder suggested so recently. Don´t remember that in the comics from the top of my head. I said head. Laugh.
You show the heads of generals or send them to the enemy camp to convey a message and this war specifically might be the first that was photographed. None of this is "murder" or "trophy collecting". It's how you win a war the fastest. Aim for the top and demoralize the enemy. Would love to know where the head props came from.
WW also demanded to publically execute the Joker, who killed half the JSA, in the just concluded Injustice prequel at the very end. Set before things and her go bad.
WW from the beloved (I think it´s only fine) Dead Earth:
She also killed him. She is the hero of the story mind you. And here is the "last" Batman story by Comic Snyder:
Film Snyder´s take is at close to the modern canon as it gets. I could do this all day.