In a vast, bustling grassland during a lively Halloween festival, a charming baby koala dressed in elegant aristocratic clothing is sitting proudly atop a majestic white horse. The baby koala, with a chubby and adorable smile, looks directly toward the viewer, radiating joy and warmth. The scene is filled with festive energy, with vibrant Halloween decorations in the background, making the entire moment feel magical and enchanting under the open sky. --ar 1:1 --niji 6