I know this thread is old but i just dug into Simon and well too bad the body and head are better scaled. the scales of the body are too far apart and much lower in resolution. I tried to texture him in Deep Paint 3D and well you get an obvious seam cuz the body parts is much lower in quality. As you can see at the attached image.

you can clearly see the neckline and above the neck the textures are much sharper. this is only one fragment and i used only one photo so the detail should be the same. I used 4000x4000 on both body and head. but if i wanted to make the scales right and there wouldnt be an obvious seam the body texture would be huge and not readable by Poser at all.