Focus - Day Lighting

I have narrowed down some ideas on how to incorporate day lighting into the building. Since the building is 75% windows on the perimeter it is already great for day lighting, but the challenge will be to block the day light. I will pop up the roof in two places and create two atriums with windows covering the north face. This will allow more light into the center of the building. I will use fiber optic daylighting to create emphasis in the lobby.