Aki: Yes
Kaori: Yes
Kuon : No (He is allergic)
Alfa: No
Serval: Yes
And too Shadows...
Kaori is a sweet girl, so her Shadow would represent
her dark thoughts. She is a fashion designer, so probably a puppet
in a doll house telling similar to Futabas, what caused her negative and Sad thoughts.
Alfa would have a electric cage, in which he is imprisoned and helpless.
Representing Alfas will to protect, to a fear of being to weak to do that.
Serval would have a concert in which bosses are probably his boygroup members.
He alone would be the star, and every creature in his palace his greatest fan.
Showing how he had thoughts of doing a solo career as well.
Kuon would be a Mastermind sitting on his Computer in
a Graffiti data esque palace. Puzzles range from coloring certain doors
with diffrent spray cans. He would more look like a evil overlord
looking down on others and using holograms as communication.