16-bit pixel art, retro video game cover art, a lone knight in weathered armor sitting cross-legged beside a bonfire, resting a guitar across his knees, dark atmospheric cave or ruins in the background, warm orange campfire glow contrasting with cold blue-purple shadows, sparks rising from the flames, minimalist environment with stone pillars and distant fog, inspired by Dark Souls bonfire aesthetic and Hollow Knight color palette, detailed pixel shading, limited color palette (16-32 colors), dithering technique, moody and atmospheric lighting, side view composition, game cover art style, high contrast silhouette