At first, there is no doubt in your mind that this is a painting of Ireena. But in the portrait, she is wearing her hair in an unfamiliar fashion, and her dress is not of the type you have ever seen her wear, neither in her manor nor briefly in Vallaki.
Strahd looks upon the painting with sadness in his eyes - heavy, this time, unlike anything you have seen on his face before.
"Who, exactly, am I looking at?" You feel strange asking. It's very clearly some rendition of Ireena. Even the minor features of her face, like the bend of her nose and the intricacies of her facial expression are captured immaculately.
"The love of my life. Tatyana," Strahd responds.
Suggestions:
>"Is Tatyana alive?">"Is Ireena Tatyana?">"Okay, you have shown me your castle. Now it's time for you to tell me where I can find my sister." (end conversation about Tatyana)>Say or ask something specific. (specify)>Perform an action. (specify)>Cast a spell or use an item. (list: https://pastebin.com/chuTtwgW)>Other (specify) 