This is another photograph taken during my visit to the Walker Art Gallery in Liverpool on Thursday. It is a photograph of part of a painting: but is it a photograph or a painting? Is it my work or the work of the artist who painted the larger canvas? If I take a photograph of St Paul's Cathedral is the resulting image mine or Christopher Wrens? I have no answers to these questions, but I do enjoy pinpointing parts of other peoples images when I go around galleries. Maybe this makes me an art thief: maybe I don't care.