The Eternal Muse by Ashley Chapman

Isabel’s life is ordinary—until a trip to the Louvre changes everything. Staring back at her from a centuries-old painting is a woman with her face. As if that isn’t unsettling enough, the artist behind the exhibit, the enigmatic and dangerously captivating Sebastian, seems to know more about her than he lets on.
Drawn by an undeniable connection, Isabel follows Sebastian to the rolling hills of Italy. But her romantic getaway turns into a nightmare when she discovers he can pull her into the paintings—and that something dark is hunting her from inside them. Trapped between past and present, she must unravel the truth of the artist’s muse, leaving her with the question:
Would you risk everything for a love painted across lifetimes?