Design a fear-inspiring gothic artwork in a slightly elongated rectangular shape for the back of a t-shirt. The design features Nyx, the goddess of the night, a raven, and a crescent moon, along with several skeletons integrated into the composition. Nyx is depicted as a dark, towering figure with flowing robes, surrounded by skeletons that emerge from the shadows, adding an eerie, deathly presence. The raven is perched menacingly, with detailed sharp feathers, and the crescent moon casts a dim, haunting light over the scene. The background is a flat, solid black, creating a stark contrast with the white skeletal figures and gothic elements. The entire composition is framed by an ornate, sharp-edged gothic border inspired by cathedral architecture. The design is black and white, with heavy shadows and sharp details, amplifying the atmosphere of fear and darkness, perfect for a t-shirt.