Complex sentence: He obtained commissions for his psychedelic painted furniture from HRH Princess Margaret, did work for the Beatles in the early 1960s, worked for Expo 67 and Lord John in Carnaby Street, while David Bailey (photographer) used his work for a series of posters.
Split into simpler sentences: He obtained commissions for his psychedelic painted furniture from HRH Princess Margaret, did work for the Beatles in the early 1960s. He also worked for Expo 67 and Lord John in Carnaby Street, while David Bailey (photographer) used his work for a series of posters.