Plains in the sky
Smoke in the sky
Planes and smoke in the sky
the sky is cloudy 
a fleet of airplanes
planes flying in an air show
jet streams from airplanes
colored jet streams from planes
green and orange jet streams
airplanes flying in a formation
planes flying in an orange sky
planes flying in smoke
airplanes giving off colored smoke
fighter planes putting an air show
thick colorful plumes of smoke
Planes trailing smoke
several planes are flying in formation in the sky