Complex sentence: Following this he arranged shoots for her at a south London studio where she was introduced to a number of other photographers and gained valuable experience, before being introduced to a leading London photographer, who provided her with work and initiated her progress towards press publication.
Split into simpler sentences: Following this he arranged shoots for her at a south London studio where she was introduced to a number of other photographers and gained valuable experience. She was subsequently introduced to a leading London photographer, who provided her with work and initiated her progress towards press publication.