Illustrate a contemplative and mystical god for Saturday, embodying Saturn and the themes of time and discipline. This deity should have an aged, wise appearance with a scythe or hourglass, wearing dark, somber robes. The background can include celestial bodies and ancient ruins, emphasizing wisdom and introspection, masterpiece by Aaron Horkey and Jeremy Mann, masterpiece, best quality, Photorealistic, ultra-high resolution, photographic light, illustration by MSchiffer, fairytale, Hyper detailed, octane render, unreal engine v5