This papercraft is Carnage, Spider-Man's enemy, a fictional supervillain appearing in American comic books published by Marvel Comics, the paper model is created by Alexey Metsler. The size of finished model is about 130 (H) x 104 (W) x 55 (D) mm.
Cletus Kasady is a psychopath and a homicidal sadist. He is a deeply disturbed individual with a dark past: as a child, he killed his grandmother by pushing her down a flight of stairs, tried to murder his mother by throwing a hair dryer into her bathtub, and tortured and killed his mother's dog. After the latter, his mother then tried to kill Cletus, and was apparently beaten to the brink of death by Kasady's father, who received no defense from Kasady during his trial.
As an orphan, Kasady was sent to the St. Estes Home for Boys, where his antisocial behavior made him the target of abuse from both the other orphans and the staff. Kasady gained revenge by murdering the disciplinarian administrator, pushing a girl in front of a moving bus, and burning down the orphanage. It was during his brutal years at St. Estes that Kasady acquired his philosophy that life was essentially meaningless and futile, that "laws are only words", and came to see the spreading of chaos through random, unpatterned bloodshed as "the ultimate freedom".