Plain images starting from a 3d model

I need to create a brand new 3d shirt pieces with white texture for this online software, please take a look to https://shop.sartoriecaiazzo.com/prodotto/camicia-sartoriale-su-misura/, where I have customized a wordpress plugin to get the job done.

As you can see you can customize your shirt in various way (short sleeves, buttons, hand cuff, collar and so on) but your are not able to change textures.
This can be quite acceptable if we have a white texture, because the one you see is very very bad.

I provided a compressed folder with all the images (folder structure and names are important) we need to create (in white texture).

Can you please review what I sent and give me a feedback (time/cost)?
If you have a better solution for web devices we are glad to hear from you.

Thanks for your time