Hard lesson : upscale from 580 to 4800px is really difficult when pics are bad quality... And this Danni HotBox picset is really awful. Make a zoom on original pictures, and you'll understand what I mean
Yes, these are not such a triumph as 242/243. The AI can create some unrecognisable monstrosities if the source image is too low quality.
At least with the low-res versions your brain can interpret the imperfections using your expectations of Silvia's features, but when the AI enlarges them badly, your brain can't "unsee" the imperfections.