Starz has officially released HQ episode stills for the first 5 episodes and they have been posted to the AUSXIP Spartacus Blood and Sand Episode Stills Gallery - If you wish to remain spoiler free..don't look!
Episode 1 - The Red Serpent (No Lucy/Lucretia pics but she is in the episode)
Episode 4 - The Thing in the Pit (None of Lucy/Lucretia but she is in this episode)
Episode Stills featuring Lucy as Lucretia
Episode 2 - Sacramentum Gladiatorum
3 of Lucy/Lucretia
Episode 3 - Legends
8 of Lucy/Lucretia
Episode 5 - TBA
2 of Lucy/Lucretia