A fractal lora made from 3d fractals, will add complexity and details at lower levels, and also do the full Mandelbrot at higher levels, though the prompts need to be quite abstract to fill the frame with fractals. The examples show it used by itself and as a detailer with other loras. Due to being in the UK I am locked out of CivitAI so new models and old can be found here: https://huggingface.co/treeshark