Create 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 should feature Nyx, the goddess of the night, depicted in a human form with flowing robes and an imposing, dark presence, using very thick lines. It is crucial that Nyx is not a skeleton but a solid, abstract human figure. Surround Nyx with minimalistic skeletons, drawn with similarly bold, angular lines, and include a raven with heavy outlines. Position a crescent moon above Nyx, rendered in a simple, striking style. The background should be solid black, and the design is framed by a thick gothic border with sharp, bold edges. Ensure all elements--Nyx in human form, the skeletons, raven, and moon--use consistent heavy lines to create a powerful, cohesive, and dark aesthetic, perfect for a t-shirt.