Harley Quinn, Monster High student, solo, (16yo), pink and black hair, clown makeup, colorful tattoos, ripped fishnet stockings, black boots, red and black jester costume, holding a giant mallet, playful pose, sitting on a Gothic-inspired stone bench, spooky trees with glowing eyes in the background, full moon, dark clouds, cinematic lighting, 3/4 composition, vibrant colors, bold lines.