Anything (and NAI) were trained on 512x768 images. While it'll work with any resolution, you'll get best results by using high res fix to render the first pass at 512x768 and put the final res at something of the same aspect ratio.
I think pic related could still work in landscape but I haven't tried it.
genshin impact, <long light violet hair>, <green eyes>, beach, <pink sling bikini>, thighs, ultra-detailed, covered nipples, pussy_juice
Negative prompt: jpeg artifacts, watermark, artist signature, extra fingers, missing fingers, extra arms, simple background, umbrella
Steps: 28, Sampler: Euler a, CFG scale: 8, Seed: 3298284253, Size: 768x1152, Model hash: 6569e224, Denoising strength: 0.7, Clip skip: 2, First pass size: 512x768
