Frater became closely associated with the renowned artists’ colony of Domburg in Zeeland, where he worked alongside important Dutch modernists such as Jan Toorop and Piet Mondriaan. The Zeeland landscape, with its dunes, beaches, villages, markets, and coastal atmosphere, became one of the central inspirations in his oeuvre. His works are characterized by a refined sense of light, subtle color harmonies, and a poetic interpretation of everyday life.

Working across a wide range of media — including oil painting, watercolor, gouache, pastel, drawing, and sculpture — Frater developed a highly personal style that balanced realism with impressionistic sensitivity. His cityscapes, harbor scenes, portraits, and rural compositions often evoke a quiet intimacy and timeless atmosphere, reflecting both Dutch artistic traditions and broader European modernist currents.

Although never seeking the spotlight, Frater maintained a respected position within Dutch art circles during the first half of the twentieth century. He lived and worked in several places across the Netherlands and Belgium before eventually settling in Baarn, where he passed away in 1969. Today, his work is appreciated for its craftsmanship, lyrical atmosphere, and its evocative portrayal of Dutch life and landscape in the early twentieth century.