According to his mother, Brill developed a passion for art at a young age. Having studied at the Royal Academy, he then went on to pass the entrance exam to study a 3-year diploma course at the Royal College of Art when the war broke out.
According to his mother, Brill exhibited an early interest in art. Having attended the Royal Academy, he subsequently took the entrance exam for a 3-year diploma course at the Royal College of Art before World War II began.