Lighting a closed space (no windows)

[Peeter]

Hi guys,

Anyone can give me some advice about how to light a space without windows? It has two small skylights, but there are no blues in the scene and everything turns yellowish... I can't a get a realistic result... Any suggestion? Lights, temperature of them, white balance? What would be the proper workflow in this case?
I can't share screenshots of the project because i'm not allowed by the client to do so.

Thank you in advance.