Fetish art isnt typically realistic. Thats why you get stuff like hyper muscles or hyper dick that no human being could handle because normal sized folks cant actually handle twelve foot dicks.
Anyways Lingdingyi drew some of this artists OC, and I like it a lot. Especially as he does some FGO Muramasa as well. Muscles dont get toocrazy, but they are drawn with pretty huge dicks in conparison.