Using stencil as texture and selling is legal?

Hello, imagine:

you are modeling character, UV unwrap, then you will take stencil of jeans (maybe from some photo from amazon or something like that) and then use this texture to texture paint jeans, if the texture would be on complete new texture and nothing from previous photo would be visible or unrecognizable, would that be legal to use?

i mean:

I take this texture and place in on my own map, and not placement or quality would be the same


or using face like this

All I can say is, be very careful with copyright laws as they vary greatly from one jurisdiction to another.