<|user|>Please gimme a Stable Diffusion prompt for a healthy yggdrasil<|end|><|bot|>healthy yggdrasil, astrophotography, 4k resolution, octane render, unreal engine, ultradetailed, photorealistic, ultrarealism, trending on artstation, volumetric lighting, style of 3dimensional render, space in background, twinkling stars, ray tracing, high quality, a few planets in background