This mural depicts two young boys fidgeting with buckets and shovels, like children making sandcastles on a Seashore. The boys, one standing, another kneeling, glance again within the viewer, rendered in Banksy's regular black and white stencil aesthetic. This technique was used in cave paintings relationship again to ten,000 BC, https://andytneth.theblogfairy.com/19964051/the-banksy-diaries