Osborne studied art and literature at the University of East Anglia. He came to art late, beginning in 1998 to paint and make relief constructions from driftwood, sacking and other found objects. Osborne has studios in St Ives and London. For 3 years he was studio assistant to his friend Sandra Blow in her later years. He also knew Margaret Mellis and visited her in Suffolk, and learnt directly from these inspirational sources. Initially selling privately to friends, Osborne has recently begun successfully exhibiting his work. In 2002 the New Ashgate Gallery, Farnham held a joint show of Sandra Blow's work and Osborne's constructions. Julian Lax showed Osborne's work at the 20/21 Art Fair at the Commonwealth Institute in 2004, and he was included in a Royal West of England Academy exhibition in Bristol in 2005.