This illustration depicts a scene between two characters, Harrow and Ianthe. Harrow, the character with a skull painted face and dark, shoulder length disheveled hair, looks shocked as Ianthe cups Harrow's chin with both hands, one skeletal. Harrow's eyes are wide with surprise, while Ianthe's expression is a mix of despair and determination, her long, pale blond hair falling around her face like a veil. The background is dark and there is a transcription from the prologue of Harrow the Ninth in white text: 
“It’s over for you, Nonagesimus. This is the end of the line.” 
You were shocked into opening your eyes when you felt the girl opposite cup your chin in her hands—her fingers febrile compared to the chilly shock of her gilded metacarpal—and put her meat thumb at the corner of your jaw. For a moment you assumed that you were hallucinating, but that assumption was startled away by the cool nearness of her, of Ianthe Tridentarius on her knees before you in unmistakable supplication. Her pallid hair fell around her face like a veil, and her stolen eyes looked at you with half-beseeching, half-contemptuous despair: blue eyes with deep splotches of light brown, like agate. Looking deep into the eyes of the cavalier she murdered, you realised, not for the first time, and not willingly, that Ianthe Tridentarius was beautiful.ALT

puppy eyes are signs of nonagesimitis