Berethorn

Hi everyone, i really love the set of favor look, but i use paladin or giant set+mask of father because it fits more my build. I would really like to make these two sets look like the favor one and i tried to do this myself with terrible results (found some of the textures but have no idea of how to swap them) because i don't know nothing about textures. I guess it's not that hard and tedious work to do, but i'm not expert so i'm not sure of that. Could someone help me doing this please?