Portrait of Superman adorned in cybernetic heavy armor and a helmet, exuding a sleek sci-fi aesthetic with glowing, intricate designs. This highly detailed digital painting presents a full-body view, capturing an elegant yet powerful essence, with smooth and sharp focus. The illustration draws inspiration from the styles of Artgerm, Greg Rutkowski, and Alphonse Mucha, ensuring a concept art appeal akin to pieces found on ArtStation. Avoid errors in depiction, maintaining a focus on precise anatomy and proportions, ensuring the character is seamlessly integrated without low-quality aspects. The artwork should steer clear of artifacts, distortions, or any features that deviate from the intended sophistication and clarity.