The Dying Gaul, Roman copy of a Hellenistic Greek sculpture c200BC

Greek Kore wearing Chiton. c500BC, Acropolis Museum

Servius Sulpicius Galba, Roman Consul and Emperor 3BC-69AD, bust

Trebonianus Gallus, Emperor of Rome 251-253ad – Bronze statue, Metropolitan Museum of Art https://www.metmuseum.org/art/collection/search/247117

Analysis of Greek kouros and later Greek statue (describes contrapposto)
https://www.thinglink.com/scene/634426545179459584