Although I was limited by the darkness and only having my iPhone for a camera, these jelly fish in an aquarium looked wonderfully dreamlike.
My son and nephew were too busy looking for sharks to notice anything else!
Close Encounter of the Jelly Fish Kind
Mike Baker | Photography 
Bioluminescent jellyfish do look amazing when seen in the aquarium, but they’re hard to photograph well without the right equipment (ie tripod and a camera that works well in low light) and with other people getting in the way. Still great pics though.
If you ever end up in Hull (yeah, I know), do visit The Deep. It’s the best aquarium I’ve been to, and they have a huge column of jellyfish, amongst other impressive things.