A vivid digital painting of an undead knight emerging from shadows, his armor gleaming with an ethereal glow, inspired by greg rutkowski’s style. The environment is richly detailed, reminiscent of ferdinand knab's and tom bagshaw's intriguing landscapes, with an atmospheric touch by rossdraws. Global illumination casts radiant light across the intricate scene, revealing moss-covered stones and ancient ruins enveloped in mist. The ambiance is both mystical and eerie, with subtle color transitions that evoke a timeless fantasy realm.