On some of Antonia's textures the model in the photo reference had different body tones.

If you look closely at most people, (not those who tan under a machine) they do not have even body tones all over.

The textures that are made with even body tones are either painted or a lot of work went into them to even those shades all over.

Does this help explain the difference in shades?

 

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     BluEcho...Faery_Light...Faery_Souls.