interesting part is that this picture is pretty because i set up stable diffusion wrong.
desaturation was partially caused by "auto" in VAE settings. After I set it to nai.vae, it became more saturated (still good tho: https://files.catbox.moe/850cnu.png ). You can try disabling VAE (set to "auto" or "none" in settings) for more desaturation.
More negprompts to the god of negprompts! Also I didn't know you can just describe the image, I thought you need to just list tags and hope model will understand what you want.