Only one V4 here, and this is filtered in Postworkshop (this was for a book cover about aboriginals, so only the guy on the left is Caucasian), but the others are all same generation males (i.e. M4). None of them are custom sculpts, just careful dial spins. Even though most are intended to be the same ethnicity, they are look differentiated.

FWIW.

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Hardware: AMD Ryzen 9 3900X/MSI MAG570 Tomahawk X570/Zotac Geforce GTX 1650 Super 4GB/32GB OLOy RAM

Software: Windows 10 Professional/Poser Pro 11/Photoshop/Postworkshop 3