portrait: artistic representation of one or more persons

studio: working places set aside for artists to work, the term is generally applied to workspaces used by artists creating fine art, particularly art dating from the 16th century to the present

human pregnancy: time of human offspring development in mother's body

old age: consists of ages nearing or surpassing the life expectancy of human beings

bust: sculpture of the upper part (head, neck, and a variable portion of chest and shoulders) of the human figure

arm: forearm and upper arm together without hand and shoulder