Generate Single Cover Art in a dark fantasy illustration style for a metal song titled 'Shadow's Redemption' using SDXL. The artwork should depict a tragic Dark Knight, struggling with their own inner darkness while wielding immense power. The knight should be in a dramatic, intense setting, possibly in a shadowy, gothic landscape with hints of light symbolizing redemption. The overall tone should be dark, gritty, and epic, reflecting the battle between good and evil and the