"Sombra" could refer to a character from a game, a shadow, or even a publication or series title. "Vol.17" suggests it's the 17th volume of something. "Meu Marido Quer Ser Corno" translates from Portuguese to "My Husband Wants to Be a Horn" which seems quite unusual and might be a title or a statement within a story or a real-life situation. "11l" could refer to a page count, a specific edition, or another form of identification.