abstraction -
bust - a sculptured representation of the upper part of the human figure, including the head and neck and usually part of the shoulders and breast
commemorative - acting as a memorial or mark of an event or person
conceptual
cubism
Grand Manner portraiture
idealism - (in fine arts) - treatment of subject matter in a work of art in which amental conception of beauty or form is stressed, characterized usuallyby the selection of particular features of various models and theircombination into a whole according to a standard of perfection.
realism - the tendency to view or represent things as they really are
symbolism
selfie
tronie - head and shoulder study, in which the model plays a role or expresses a particular emotion