The work that sells the shop loads as a 300-pixel thumbnail.
What I sawThe homepage runs a small slideshow of framed pieces, but every image on weaverbirdworkshop.co.uk is around 300 pixels wide. On a modern phone that is a third of the screen stretched across the whole of it, so the framed silks, the box-framed shirt, the conservation jobs all go soft the moment they fill the viewport. For a trade where the finished look is the entire point, the photos are working against you.
What the rebuild doesThe rebuild treats each framed piece as a properly sized photograph inside a cream mount-and-bevel that echoes your own work, sharp on a retina screen, lazy-loaded so the page still opens fast. The same photos you already have, shown at the resolution they deserve.