UV MAPPING:
Open the UV first, then in maya, there will be a messy UV, then sew it and then unfold it to organize it. Then cut it the way it makes (the default square map on the UV has to be even). Keep doing the process until the UV map is tidy and the square is even.
Texturing:
There are two ways to do the texture here. One is using Substance Painter to paint it following the UV map. The second way is using a node to do the texture. For this project, I think it is better to use nodes for texturing.
I did some experiments on the texture as well to find the best visual I wanted:
Rendering process:
Final: