I think what you person who told you this meant was that.. let's say you're recreating a celebrity. Unless you get a high rez photo oof said celebrity, it will never look really real - because eyes, eyebrows, skin tone, moles ect are all poart of what we see, subconscious, when we look at a person. And you will notice if it's "off".

I've tried for years to make a believable replica of Alan Rickman. And although I HAVE several (like a few thousand...) pics of him.. it all strands on the fact that I do not have enough  high rez closeups that can be used together for a proper skin texture. And thus, it won't look right, even if I've got the morph pretty close by now.

But sure you can mix and match from several characters, as long as it's for your own use. You can't sell or give away such a texture of course, but I don't think that's what you're planning either, right?

AFAIK, M4 and V4 shares eyes, so one eye texture will work for them both. You may be lucky to find JUST the right eye in one pack, and a close-enough skin texture in another, and they can be mixed as you please :)

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