"A Skull on pixelated fire; in the background, there is a moon in a clear night sky. This painting is based on a Minecraft screenshot." according to the Minecraft Wiki.
The "Skull on Fire" painting contains a Minecraft world in the background, "The Painting was placed in an early version of the game as an easter egg.
Inspired by a true story, Invincible recounts the last 48 hours in the life of Marc-Antoine Bernier, a 14-year-old boy on a desperate quest for freedom.