We really need more fanarts of Arthur and Morgan together. I dig that the artist chose to depict her as the Queen of Winter and have her taking her dying half-brother to Avalon, since she's also Vivian/Nimue in the Nasuverse.
I also appreciate that the artist has Morgan show some affection to Arthur bay smiling faintly (barely visible on her nearly emotionless face), holding his head and touching his hand. This is beautiful, and it really makes me think of the end of Excalibur. And now, I have Wagner's music playing in my head.