A detailed pixel art of a full-body medieval knight, designed in true pixel style with a resolution of 32x32 or 64x64 pixels. The knight wears a gleaming blue metallic armor, reflecting light with vibrant pixel highlights, while subtle tarnish in some areas is depicted using darker pixel shades. The armor includes small pixelated engravings of battles and mystical symbols. He stands wielding a large, pixel-perfect longsword, its blade visibly cracked, with a pixelated golden hilt that shows wear. His stance is heroic yet slightly slumped, emphasizing his struggles. His helmet's visor is raised, revealing a pixelated face with tired, sorrowful eyes and scars, all defined by just a few well-placed pixels. The background is a misty, ruined battlefield, drawn in pixel art style, with broken banners and scattered shields providing depth and narrative, while keeping the resolution low for an authentic retro pixel art aesthetic