Final answer:
Rembrandt's art is mainly characterized by his use of chiaroscuro, creating dramatic and lively presentations, and showcasing compassion for human subjects with a focus on naturalism and color.
Step-by-step explanation:
The work of Rembrandt van Rijn is characterized prominently by his use of chiaroscuro, a technique that plays with light and shadow to create a dramatic effect. This approach, inspired by the Dutch Caravaggisti who were followers of Caravaggio and his chiaroscuro method, allowed Rembrandt to create lively, dynamic representations and showcase a compassionate understanding of the human condition. He avoided the rigid formality of his contemporaries, and his artwork showed a devotion to portraying naturalism in both subject matter and color. His paintings often featured biblical, mythical, and historical themes, and he was known for his deeply reflective self-portraits in later years.