Modern Nuetral Bedroom Designs

I am working on a new Project right now, Interior Design for a young executive. So far, what he gave me as basis is just the plan and he wanted it bright and clean. More on modern minimalist design. As color theme all he told me is that he want to keep it on the neutral tone. So far here are some of the 3D that I have made. I will have to submit a color swatch and sample pictures of the materials to be used since my software doesn't get the exact color that I wanted. Most of the 3D looks yellowish which I didn't intend to. I need a little more tweaking on this.