Generated with Stable Diffusion txt2img and refined over several generations with img2img. Various prompts over the course of generation, but typically:

`princess luna wearing heavy armor, masterwork award winning, ethereal, light shafts, mlp, pony, intricate, detailed castle background, twilight`

AI-upscaled and edited in GIMP for final version. "timelapse" of generated images: https://streamable.com/0gpznu