A nostalgic Halloween composition showcasing three distinguished black cats with piercing golden eyes arranged in classic portrait style, featuring detailed vintage illustration techniques with rich sepia and muted color palette. The central cat wears an ornate crystal-adorned witch's hat with antique silver moon charm, while the side cats sport miniature mystical accessories - one with a tiny pentagram collar, the other with a delicate crystal pendant. Their expressions are serene and mystical, with subtle head tilts suggesting ancient wisdom. The background features a sepia-toned full moon with intricate Celtic knotwork patterns etched across its surface, surrounded by a constellation of detailed moths rendered in classic woodcut illustration style. Three ornately decorated cauldrons with Victorian-inspired mystical symbols sit before the cats, their ethereal glow creating period-appropriate lighting effects. The entire scene is bordered by an elaborate vintage frame design with Celtic flourishes and aged parchment textures, giving the composition an antique witchcraft grimoire aesthetic. Rich detail includes period-accurate fur rendering with subtle highlights, moon surface Celtic pattern etching effects, and intricate cauldron mystical symbol work with authentic candlelight. The design is print-ready, fully isolated on a white background with no shadows or textures, fully contained within canvas boundaries with no cut-off elements and proper margins around all elements, and intended for use in t-shirt printing. | PODspy AI Design