Create a highly detailed,photorealistic image of an island in space orbiting a planet devastated by nuclear war. The island is protected by a shimmering force field and is covered in forest and grassland,with a waterfall running down the side. In the center of the island is a massive castle made of crystals. 8k,octane render,ray tracing.,<lora:New_Fantasy_CoreV4_FLUX:0.8>,