Starz has officially released HQ episode stills for the first 5 episodes and they have been posted to the Episode Stills Gallery - If you wish to remain spoiler free..don't look!
Episode 1 - The Red Serpent
6 Images
Episode 2 - Sacramentum Gladiatorum
15 Images
Episode 3 - Legends
13 Images
Episode 4 - The Thing in the Pit
12 Images
14 Images