So what i used here is a long gardening rod with some little fire works attached at the end of it. In the middle is a relativley short blue plexy tube with a flashlight. Fire it up and walk down the lost place. In addition to that i walked on each side outside the columbs and shed some light from the sides.
The exposure time here is 120.1sec. at F9 ISO100 with the 16-35mm F2.8 Lense on 35mm.
if you love it as much as i do leave a comment or an upvote
if you have more questions how its done ask me please.
for more of this kind of art look for my pages:
https://lightpainting.world/
https://www.youtube.com/channel/UCTAEwW-fz9br_JaWOiJlWxg
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https://www.instagram.com/gunnarheilmann