Most balloon festivals include a 'glow in' where some of the participants stand-up their balloons at night for some impressive eye-candy. They don't fly, it's just to impress the gawkers, of which there are plenty; 'cause it's quite a sight.
This image is a composite from six images, one for each balloon. Once they stand the balloons up, they fire the burners occasionally, but generally not all at once, to keep the envelopes inflated. I shot a bunch of images trying to capture a good image of each balloon with the burner firing and 'glowing' the envelope, then manually merged them in photoshop.
I'm kinda pleased with the result. Hope you like it too.
BTW, this image is from the Sand Hollow Balloon Festival. (Sand Hollow is near Hurricane, UT.) Printed at 300 dpi it's 50"x22".