The heroic figure atop a magnificent horse stands ready for battle, their armor shining brightly in the sun. The hero wields a long sword in one hand and a shield in the other. His face is determined and heroic - a courageous champion prepared to fight for his country. To bring this scene to life, I would paint the horse and knight in metallic silver and gold, shading around the edges for definition. The shield would be a bright red or blue, emblazoned with a proud emblem. The sky behind the duo would be a vibrant blue, while the landscape they ride through would be shades of green and brown. Finally, I would add subtle touches of yellow, orange and white around the edges, to create a sun-soaked atmosphere.