Create an art portrait of a Space Marine Solis Sacerdotibus with a sword, featuring dark blue and white robes and a Golden Castle of Stromberg background. Incorporate holy imagery, micro details, and lifelike details, with a focus on high resolution, hyperrealistic, and cinematic lighting. Include a skull cane as a prop and use a mix of octane render and pixel art styles. The image should be a headshot, with a dramatic lighting effect and a focus on the subject's face and armor. The art style should be reminiscent of artists such as Alex Grey, Android Jones, and Ben Ridgeway. The final image should be in 4K resolution, with a 50mm focal length and volumetric lighting. Use a Golden Ratio composition and incorporate subtle bio- luminescent effects