Custom clothing question -- back of MC kutte is pixelated?

Hi everyone!

I am very new to custom clothing, but I have years of experience doing hobbyist graphic design, so I decided to make a set of kuttes for someone who is paying me IC in an RP server as practice. I am using the template here: Lost MC Biker Vest for MP Character (With Template) -

Even the back on the Lost MC texture provided in the original file is very pixelated.

I’m going to post images of the custom back of the kutte.

I have a working hypothesis that this is because the 3D modelling on the BACK of the MC Kutte is not as “smooth” as the front, which is why the front looks fine…

If anyone could give me advice or explain why it is like this, I would greatly appreciate it as I’m trying to learn as much as I can.

My resolution used has been 2048x2048 and 1024x1024, but it’s still very pixelated.

2048x2048 resolution

1024x1024 resolution