Houzz is primarily for residential buildings but here are some images that might give you an idea of maximising space and light You basically want to keep a level of space and light so white or a soothing pale blue can work if the work is stressful. Good lighting and good natural light. Perhaps your management box in the center as four squares and slightly raised so you can see out the windows but also allow your staff to benefit. A rest and relaxation area for some breaks and a kitchen and toilets.

Let me have the place of yours.

The walls are painted with enamel. Would love some economical solution to work on the same.

A dusty and dingy transition space near the home theatre was given an uplift by converting it into a box office. Let us know what you like best. Before After