Create a cover image for a medieval fantasy romance novel titled "The Lost Princess and the Warrior." The scene depicts a young, handsome knight, David, mid-action, possibly in a training exercise. He is dressed in polished silver armor, reflecting the late afternoon sun. He has a determined, focused expression. In the background, partially obscured by soft focus, stands Princess Amanda. She is seen on a balcony or high window, her golden hair catching the last rays of the sun. Her expression is one of longing and hope. The scene is set in the courtyard of a grand medieval castle, the architecture detailed and evocative of a French or European medieval design. The atmosphere is golden and warm, with a sense of both strength and romance. The lighting should cast long shadows, emphasizing the contrast between the knight's strength and the princess's vulnerability. The overall mood is one of yearning, duty, and the promise of a love amidst the backdrop of potential conflict. Use a style of 'lh_new_flux_realistic'.