It's the style of shoe (pointed toe stilettos go beyond the actual end of the foot to create a point) and the fact that it's shot in the foreground. That kind of shoe is better suited for clothes. If on a naked body, it'd better be a taller heel to make up for the difference. *This post was brought to you by style engineering 101.
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"What I do know is that if Karen Carpenter and Mama Cass Elliot had shared that sandwich they'd both be alive today." -Michael K