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 artwork features Nyx, the goddess of the night, depicted as a tall, abstract human figure with thick, flowing robes and a commanding presence. Surround Nyx with minimalistic skeletons, drawn with similarly thick, angular lines, and include a raven with bold, heavy outlines. Place a crescent moon above, rendered in a simple but striking style. The background is solid black, and the entire design is enclosed by a thick gothic border with sharp, bold edges. Ensure that all elements--Nyx, the skeletons, raven, and moon--have consistently heavy lines to create a powerful, cohesive, and dark aesthetic, perfect for a t-shirt.