LOL, never seen such a blatant ripoff before!
I know, I know. This is an obscure movie that most people have never seen about or cared about, nor are both artists well known enough to even care about this issue.
It's just that in all my life, I've never seen anything this brazen. The red-headed character in Downfall is an exact copy of the main character of Raptors, a graphic novel by Enrico Marini. I can't find an image link of the Marini character; the best I can do is pull up a page where you can preview the comic. But if you scroll through to the second page, you'll see it's the same character, right down to the attitudinal bitch-face and floppy hair.
Deadfall: https://fanart.tv/fanart/movies/13190/moviebackground/dead-space-downfall-5247c83485e4f.jpg
Raptors: https://www.overdrive.com/media/2680673/raptors-part-1
Raptors 2: https://www.overdrive.com/media/2680674/raptors-part-2
It's not a big deal; it's just that I find the whole thing hilarious. Yes, Marini isn't a super famous graphic novelist but he's "famous enough" to anyone who read Heavy Metal back in the day and was into European graphic novels.