/ic/ - Artwork/Critique

why does loomis flip the hip bone for women? i know women generally have wider hips but i find this confusing. why not just make the trapezoid wider and fill in the rest while building on the thigh? i have been getting girls wrong with thigh gap being very large and no idea how to map ass cheeks from below the trapezoid so im assuming loomis system is superior, he is the master, but i just cannot wrap my head around it. how would i know for example where the thigh bone comes from?