Halloween costume generator, futuristic laboratory, dimly lit, eerie atmosphere, rows of workbenches, shelves lined with beakers, test tubes, and machinery, a large computer screen displaying a 3D model of a costume, a robotic arm assembling the outfit, a witch's hat, black cape, broom accessory, glowing purple eyes, pale skin, bold red lips, ruffled white shirt, high-waisted black pants, pointed boots, steampunk goggles, intricate lace details, metallic accents, dark mysterious background, foggy ambiance, spotlights shining down, cinematic composition.