Roboute Guilliman, the Avenging Son image by _Calgar_

best quality masterpiece realistic detailed medieval portrait oil painting close up 1man 48 years old tall stature grim face mature battle aged looking at the viewer blond hair blue eyes short hair full armor power armor laurel wreath glowing halo metal wings massive pauldron pointing at the viewer war background ruins guilliman:1.4 lora:rg mk3:0.75 stunning gradient colors detailed background absurdres HDR