Delia produces fine still life works with added dimension almost echoing Renaissance styles-fine interior detailing, then perhaps, a scene through a window to a distant stylised landscape. Form, colour and perspective all play an important role in paintings which are painstakingly produced.
Delia has gained wide recognition, winning many prizes. She was elected a member of the Royal Institute of Painters in Watercolours in 2000 and elected to serve on the council (2001–2005) and (2010-2014). She frequently demonstrates painting techniques and writes articles for magazines.