Painting when it wasn't really "done" for women to do so.
Painted people honest
From Hollie McNish' book "Slug"; Annie was apparently one of only a few painters to paint real depictions of working-class wome looking genuinely pissed off and bored with their work and childcare chores, at a time when the majority of the art wold preferred rosy-cheeked romanticisations of back-broken labourors. Annie also beautifully emphasised women's wrinkles in almost all of the paintings, which wasn't very fashionable in the late nineteeth and early twentieth centuries in which she worked, especially in portraits of women
https://artuk.org/discover/stories/annie-swynnerton-artist-and-activist