man: male adult human

suit: Western business attire of matching jacket and trousers

moustache: facial hair grown on the upper lip

portrait at bust length: representation of the upper part of the human figure, in picture or sculpture

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

portrait: artistic representation of one or more persons