Create a highly detailed digital artwork of Reinhardt from Overwatch, with a focus on a close-up of the character's junk-robot appearance. The artwork should feature a full-body shot of Reinhardt in a grey suit, with a large bust and intricate details. Incorporate a halberd and torn wing VFX elements, and draw inspiration from the styles of Tim Hildebrandt, Laurie Greasley, and Jordan Grimmer. The artwork should have a cosmic, heavenly feel, with god rays and detailed, intricate details. Aim for a photorealistic style with micro details, and output the artwork in 4K HD.