I don't think it's the mesh. I think it's just the preference of most of the folks doing most of the rendering, viz some sort of attraction to "bish" guys. (Which I don't understand, but whatever.)

I haven't done many male renders, as about 90% of my images have been tests or whatever of my Believable MidLife Sharon character, but I did this one of M4 when he first came out... of course, he's a bit on the large side, I wanted to play with that and see how he'd fare. (Click for full size.)

I'll probably start on a Believable MidLife male once I've finished with Sharon; I just work slowly. :-P  There are some manly middle-aged type males out there, but most of them seem slightly caricatured for my tastes.

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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