Quadcopters

The theme of this contest entry was "flying machines." I went for quadcopters.



I got the colors from here (with the addition of black):


Color by COLOURlovers

This made it just into the top two-thirds of entries. My favorite entry featured lots of little planes sensing each other with radar. The majority of entries featured biplanes or hot air balloons, but there were actually a few others featuring drones.