Cropped head is currently a mix between cropped shoulders, head only and actual cropped head. If we want to reserve the tag for the third type might be a good idea to rename it to cropped face? Tho some could argue that it doesn't fall in line with our other cropped tags and that close-up would suffice.
Cropped shoulders's wiki says that it also includes the ones that have a cropped neck, I'm fine with post #5500712 and post #5707101, but there're edge cases like post #5456798 that I'm not so sure of.