several planes in the sky
several planes releasing colored smoke
several planes performing a midair stunt
eight planes in the sky
eight planes painted red,white and blue
Group of eight airplanes
Large spectator airplane show in sky
Red, white and blue American patriotic colors
Airplanes flying in parallel direction
Long trails of colored smoke across the blue sky
Bright blue clear sky. 
Airplanes in mid-air with smoke descending. 
eight red planes are flying in formation through the blue sky