I’ve been back at Ronald Ross Primary School to make a suitably marine environment for the giant whale I made with the children last week – I painted a multi-coloured swirl of fishes going round the whole room, then used self-adhesive translucent film to create the same effect on the windows. From outside the school it almost looks as if the whale is about to eat them (plankton, though more scientifically accurate, wouldn’t have had the same visual impact….)