half-length

nouns

a portrait showing the body from only the waist up
is a type of (narrower)
any likeness of a person, in any medium
"the photographer made excellent portraits"

adjectives

representing only the upper half of the body
"a half-length portrait"
is similar to
low in stature; not tall
"he was short and stocky"; "short in stature"; "a short smokestack"; "a little man"
abridged to half its original length
is similar to
(used of texts) shortened by condensing or rewriting
"an abridged version"