After MegaCon I decided to make a new, better fitting, skirt, apply the new badges, restyle the wig, fit the gloves, make new stockings, and make a new gun
It was pretty close to me, but I think it was a good 3-5 feet away from the backdrop. This was before I was taught how to use a background light properly.
Did you use a remote trigger?
Do you remember how far back the lightstand was?