Create a fear-inspiring gothic artwork in a slightly elongated rectangular shape for the back of a t-shirt, using simple black and white shapes with no shading or gradients. The design features Nyx, the goddess of the night, a raven, a crescent moon, and skeletons, all represented with clean, bold lines. Nyx stands tall, her silhouette dark and imposing, surrounded by minimalistic skeletons in rigid, angular poses. The raven is perched ominously, and the crescent moon hangs above, stark and sharp. The background is solid black, and the entire design is framed by a simple, yet sharp-edged gothic border. The overall aesthetic is bold and striking, with no shading--just pure black and white contrast to evoke fear and darkness, perfect for a t-shirt.