Which illustration technique uses downsampling?

Cropping, anti-aliasing , imperfection/contrast

Explanation:

In a nutshell, the downsampling technique is used to reduce the aliasing effect on images, once several anti-aliasing techniques available are still insufficient. In general, Anti-Aliasing technologies "create", repeat or simulate pixels around objects.

a mans hand is more square-like, the fingers are thicker than a womans and they look more muscular. the nails are boxy and not too long.