Some color tests.
I have chosen to use a golden light which is very predominant in the series, also because I think it refers to the concept of justice.
Normal daylight can create shadows that can make characters' faces a little grotesque. Luckily, the tribunal in this game has a kind of glass window that filters the light and makes this effect less evident.
I added some blue shadows (because I like the blue/yellow contrast) and a golden backlight coming from the lamps in the hall.