The paintings of A.J. Rahman highlight the traditional way of life and the routines of the local people, evoking a sense of calm and harmony. His works often depict village houses constructed from natural materials, set amid lush greenery, reflecting a peaceful relationship between community and environment. In 1946, together with A.B. Ibrahim and Saidin Yahaya, he co-founded the group Tiga Serangkai and established Warna Art Studio in Alor Setar, pioneering the beginnings of art activities in Kedah. A.J. Rahman was also a school teacher alongside his artistic practice.