Design a fear-inspiring gothic artwork in a slightly elongated rectangular shape for the back of a t-shirt, using thick, bold black and white lines throughout. The design features Nyx, the goddess of the night, depicted in a human form with flowing robes and an imposing presence, rendered with very thick lines. Surround Nyx with minimalistic skeletons, drawn with similarly bold, angular lines, and include a raven with heavy outlines. Place a crescent moon above Nyx, rendered in a simple, bold style. The background is solid black, and the entire design is framed by a thick gothic border with sharp, bold edges. Ensure all elements--Nyx in human form, the skeletons, raven, and moon--are rendered with consistent heavy lines to create a striking and dark aesthetic, perfect for a t-shirt.