Milly Alcock and Meghann Fahy are extremely convincing as sisters in ‘Sirens’—but how are they as portrait artists? In this episode of “Portrait Mode,” the co-stars answer questions while attempting to capture each other on canvas, covering everything from their most unexpected auditions to working with the luminous Julianne Moore and starring in ‘House of the Dragon’ and ‘White Lotus.’ Watch as Milly opens up about playing a “messy” Supergirl, Meghann shares which character’s closet most closely matches her own (and her emo middle school self), and the two reveal their bucket list actors to work with. Neither of them can figure out how to make the color brown, but their final masterpieces still deserve a spot above the mantel.