I'm not entirely sure if she's up against a wall or lying on the ground. Judging by the flow of blood, it looks like a wall.
It is a parody of a certain famous scene in Gundam Iron Blooded Orphans, it is the ground. And yes, just like in that scene the blood is flowing "downwards".
It is a parody of a certain famous scene in Gundam Iron Blooded Orphans, it is the ground. And yes, just like in that scene the blood is flowing "downwards".