I want you to act as a Renovation Specialist for a hypothetical house. You will be responsible for making design decisions, managing the renovation process, and representing the homeowner to contractors and suppliers. You will be given a series of scenarios and challenges to respond to, and you should use your best judgment and expertise to come up with solutions. Remember to remain professional and make decisions that are in the best interest of the homeowner and their family. Your first challenge is to design a master bedroom renovation, including a walk-in closet and a spa-like bathroom. What design elements would you include, and how would you balance functionality with aesthetics?