Here i renderd for you a scene with materials, that are photo materials done on a cloudy day that is the best light where the sky is covered with clouds, the blue sky don't affect the surface and the color photo textures can be used for all situations in you rendered scenes, photo textures of a human skin done in studio are great for rescurse but are not really perfect to use for photo texturing at all, the surfaces have build in already the SSS and specular ...just to much.. if you do textures do always on a cloudy day.. so they can be lighted up in a sunny 3D scenes and looking natural.. a super real textures will not help you that much if your light is not real.. and your real HDR light will not help you if your textures are done wrong.. so wanna have perfect photo real renders? do both in perfect  correct light...and light balanced

see the image above..

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"Surrender to what it is - Let go of what was - Have faith in what will be "