This is one bathroom design which I have done for Ms. Namrita. At Dubai. In this 3d view I have used only normal photometric lights.

For the purpose of improving the quality of life, increasing productivity, and protecting the health, safety, and welfare of the public, the Designer

For the purpose of improving the quality of life, increasing productivity, and protecting the health, safety, and welfare of the public, the Professional Interior Designer:
1) analyzes client's needs, goals, and life and safety requirements;
2)integrates findings with knowledge of interior design;
3)prepares working drawing and specifications for non-loadbearing interior construction, materials, finishes, space planning, furnishings, fixtures, and equipment;
4)formulates prelimiary design concepts that are appropriate, functional, and aesthetic;
5)develops and presents final design recommendations through appropriate presentation media;
6)collaborates with licensed practitioners who offer professional services in the technical areas of mechanical, electrical, and load bearing design as required for regulatory approval;
7)prepares and administers bids and contract documents as the client's agent;8)reviews and evaluates design solutions during implementationa and upon completion. (from NCIDQ statement)