For such an inherently 3-dimensional medium, there’s an impressive amount of 2-dimensional LEGO builds out there. Mathew Walls makes his TBB debut with one such build – and appropriately, it’s an artwork that was famously drawn on walls! Perhaps Banksy’s most famous artwork, Girl with Balloon was originally made with stencils and spray-paint – and you can’t get much more 2D than a single layer of paint. But Mathew has done a great job of replicating it here, with the help of various curved and angled tiles and plates. Even the girl’s outstretched hand is there, reaching for the balloon that has escaped this 2D frame.