Beautifully done and very funny (because I'm sure no real Rainbow Dashes were harmed during the production of this comic). Great job on all of their pixel forms and the backgrounds, and "jolting the camera" during the rocket's rise added another dimension to the sense of motion and speed. Derpy's flying is also great, and you did a wonderful job on the expressions. The text was all well timed too.
I hope you had a terrific Independence Day as well.