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.
His mother mentioned that Brill had a fondness for art from a young age. After attending the Royal Academy, he sat the entrance examination to enroll in a 3-year diploma program at the Royal College of Art as World War II was about to start.