Tierra de Pasiones and Pecados Ajenos, two of his latest novelas, could be considered modern-day retellings of William Shakespeare's Romeo and Juliet, especially the latter, and are of the tragicomedic genre.
Additionally, Vonn's novelas greatly differ from other Hispanic writers' in that they typically take place in the United States and follow the lives of Hispanic-American characters facing contemporary issues, such as illegal immigration, LGBT acceptance among the conservative Hispanic community, difficulties getting into college, teenage drug abuse, sex, and subtle criticisms on religion.
The situations — whether it's gore, murder, or violence — are full of black humor which causes viewers to have different emotions at the same time.
The best proof of this type of work are his late timeslot telenovelas Pecados Ajenos with Telemundo, Cielo Rojo and Vivir a Destiempo with Azteca.
Tierra de Pasiones with Telemundo and Quererte Así with Azteca are a bit lighter, especially the ultimate one, because of earlier timeslot.