Tilmouth studied at Hornsey College of Art (where David Tindle was a tutor) and the Byam Shaw Schools in London in the 1970s. Her work is grounded in careful observation and a careful delicacy of technique. As Tilmouth herself points out, her art ‘is an interpretive response to the natural world.’
Sheila works meticulously with thin layers of oil paint on a gesso panel capturing the fall of light, texture or form of her subject matter, creating life-like images of unusual beauty. Cats are one of her favoured subjects.