Photoshop mockup templates of several images

I need a group of 25 images turned into photoshop templates where the sweatshirts, and tshirt colors can easily and quickly be changed and a vector (PNG) image laid seamlessly on top on the apparel and look natural and real.

set these up so I can easily change the colors of the tshirts (please provide specific instructions on how to do so) and also so I can drop a PNG file/s and they look like that are native and naturally on the clothing, if there are drawstrings over the front of the hoodies please make them so that they look like they naturally fall over the clothing and the graphic as would in real life, also please address any hair so that it doesn't get in the way of any graphics on the clothing and looks natural as well.

https://graphicriver.net/item/urban-tshirt-mockup-1/25877855