A man in armor stands in front of a castle with a sword

(best quality,4k,8k,highres,masterpiece:1.2),ultra-detailed,(realistic,photorealistic,photo-realistic:1.37),Johnny Cash as a knight,cybernetic armor,full body portrait,majestic backdrop,dark atmosphere,expressive eyes and face,ancient castle with towering spires,muscle definition in armor,stark contrasts between light and shadow,vivid colors,gritty texture,illustrated style,harmonious composition,reflection in the knight's helmet,reverberating power,electric blue lightsaber,fiery sparks emitting from his armor,majestic stance,his face showing determination and wisdom,his armor adorned with intricate details and engravings,the knight holding a guitar with ornate carvings,blues notes floating in the air,hint of smoke and mist around him,stormy skies above,thunderbolts in the background,haunting melody resonating in the air,sense of mystery and adventure,overall medieval-inspired ambience