Haquin's work consists of figurative paintings often originating from everyday events, dreams, and memories. The depicted scenes appear personal and intimate, and may seem mundane at first glance, but upon closer inspection, they reveal how the boundaries between dream and reality can blur. Haquin's paintings are characterized by an expressive touch, complex emotional layers, and a powerful color palette. He often uses models to reenact certain scenes from his imagination as part of his creative process. In 2024, Sebastian Haquin received the Volkskrant Visual Arts Public Award at the Stedelijk Museum Schiedam.