There is no denying that the titular character looks quite moody in The Batman, and according to Matt Reeves, this emo depiction takes inspiration from Darwyn Cooke’s Batman: Ego and Other Tails.

“I wanted to get into the mindset of the character, and I wanted to think of the psychology,” Matt said during DC FanDome 2020, via Esquire UK. “For me, I think, one of the cool deep dive (comics) was Darwyn Cooke’s Ego. He’s confronting the beast that is Batman, and there’s a kind of duality.”

Source: https://www.distractify.com/p/what-comic-is-the-batman-based-on