A vintage western illustration featuring cowboy Santa riding a rearing white horse under a full moon silhouette. The central figure shows Santa in traditional western attire with a wide-brimmed cowboy hat, orange-red coat with white fur trim, green chaps, and tan boots, carrying a large gift sack over his shoulder. The horse is depicted in a dynamic rearing pose with flowing black mane and tail, detailed with vintage hand-drawn linework and cross-hatching. Bold distressed green block letters spell 'ST. NICK'S' at top and 'RODEO' at bottom in a classic western saloon font with weathered texture. Red slab serif text reads 'THE NORTH POLE PRESENTS' above and 'DEC 25' to the right in a vintage poster style. The artwork features a muted earth-tone color palette with forest green, burnt orange, cream, and dusty red, rendered in a retro hand-drawn illustration style with visible texture and grain suggesting aged paper. Subtle halftone shading and stipple effects add depth to the character and horse. 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