No doubt they aren't pure screenshot. They've obviously been touched up with some editing magic, but otherwise they look legit.
I'm just waiting for SEGA to release the Battle of Carthage video they shown to the reporters.
I am the Carthaginian who became an angel, and surrendered his wings for a life on the sea of battle.
My magic screen is constantly bombarded with nubile young things eager to please these old eyes. This truly is a wonderful period in which to exist! - Terikel the Deflowerer