Mirrors

Top; Lt. Col. Jessica Ellen Rhys-Stark and her assimilated - and liberated - transporter duplicate Thirteen of Forty (yes, that's a House reference)
Bottom; Amr. Velora Renezar and her alternate universe "twin" Viccis.

Note that they're ALL in the "thoughtful" stance except for Velora. They're also, all three, bridge officers as well.