One of the main differences between the high poly Zack and low poly Zack is that low poly has less pixels dedicated to the front of his shirt, which is why I didn't carry over the leather belt and some elements because they didn't fit the resolution, or they were too pixelated. It's better to work on the high poly stuff and then port it over to the low poly.
Here's an update:
I just redid the suspenders from scratch, although I haven't added the fake lighting just yet.
I also redid the handle on his sword so the lines are more prominent. It's really important we get this right, because we're likely going to be porting it to Angeal and everything else. You could argue this is the most important texture in the whole game so I want everyone to give me feedback. We need to get Zack right.
I don't think we need to go higher than 4x for now. Maybe someday in the future. I just want to make sure everything looks good and consistent at 4x first. I've already made a lot of stuff at 4x and doing it all over is daunting.
To add fake grain, I just lasso tool > Filter > Noise > Add Noise, I keep it a low value like 1-5, and monochromatic. It's just enough to make it feel like it has texture, otherwise it looks too clean and fake. This can sort of simulate fabric and leather.
I'm not too satisfied with the current shoulderplate texture so I might re-do it a bit too. I sort of liked vierock's, it looks rather authentic:
https://i.imgur.com/hDfE4lD.png
At some times, I've wanted to just copy vierock's stuff over, but that would be plagiarism and they disappeared, so it's better to be respectful of their work and do stuff independently. vierock used my UI work without asking me and I pointed that out, then they just abandoned this forum, so I wonder if I spooked them away. I also commented that I didn't like how dirty the walls and floor of the Shinra Building looked so I might've accidentally insulted them... oh well.
And yeah, let's not get offended if we overwrite and re-do each other's work. This is a collab project after all. My "Shina Motor Group" car logo texture isn't so hot anyway, it could always use someone else improving it.