One year we went to Hyannis on Cape Cod. There was a street exhibit where artists employed their artistic talents to a series of concrete whales. Naturally given my avocation for flying machines (ie: Airhead 55), this example caught my eye.
This appears to be an iteration of a whale transformed into a WWII style airplane. Naturally, the flippers have been transformed into wings, the tail fluke into an aerodynamic device.
Are the aerodynamics sufficient to allow flight? I would say no, concrete is pretty heavy when compared to the usual aeroplane aluminum. So on the ground, the shadows on both seem to indicate motion...Shadows add neat effects to any object, real or imagined - see many more at Brisbane's own (and fun) Hey Harriet!