Andrias_Bartlett
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Andrias_Bartlett, I checked in the game... a texture file size of 2048 is, of course, good, but simply increasing the texture size from 512 to 2048 should be done using specialized tools, for example, waifu2x-caffe is very advanced in this regard, and the result after its enlargement is very high quality!
I hardly touched the original textures; I used the source files from here, except that I upscaled the faces using GFPGAN. In my opinion, they are quite good (there is a comparison), at least they are definitely better than the original.