Complex sentence: Gwen Raverat was a member of the Society of Wood Engravers, which held an annual exhibition that included works from other artists such as David Jones, John Nash, Paul Nash, Paul Gauguin and Clare Leighton SWE.
Split into simpler sentences: Gwen Raverat was a member of the Society of Wood Engravers (SWE). SWE held an annual exhibition that included works from other artists such as David Jones, John Nash, Paul Nash, Paul Gauguin and Clare Leighton SWE.