If you'd still like a face for your character (and maybe for them to resemble you), why not try an AI facegen like generated.photos? They have a lot of readymade shots, and you can also create your own or even get an 'AI version' of your own face. Source: 12 months ago

I think this could work wonderfully with an online anonymiser though, like this one. I've always wanted to use that site, but can we really trust that they aren't using our uploads for purposes we don't want? Passing an image through Fawkes before services like these could be a neat way to combat some of the limitations. Source: about 1 year ago

Used this resource https://generated.photos/anonymizer to upload a photo of Ripley and select from AI generated faces that are supposed to be "similar to". Source: almost 2 years ago

In an effort to restore them as much as I could, I used a combination of waifu2x ("Single-Image Super-Resolution for Anime-Style Art using Deep Convolutional Neural Networks"), Clip Studio Paint resize/cleanup tools, and manual cleanup done by hand. Unfortunately, the red text on the title page was a lost cause. If anyone can decipher solid red rectangles please contact me lol. Source: about 1 year ago

Maybe this would help. There's also an app version of it. Source: about 1 year ago

I would recommend putting it through an upscaler beforehand, it seems a bit small. Source: over 1 year ago

Http://waifu2x.udp.jp/index.html found this image upscaler from https://www.reddit.com/r/FireEmblemHeroes/comments/a51f0k/i_turned_yusuke_kozakis_artwork_into_a_high/?st=JPIZKYIB&sh=f12f76fe a while ago, perhaps that would be the closest if IS doesn't release anything. Source: over 1 year ago

You can make it bigger for print by using by using an Japanese AI image enlarging tool. Source: over 1 year ago