Start with the floor. Along with the ceiling, the floor represents the largest share of space in the room, although it's actually more important, since we come in direct contact with the floor. Any steps and staircases in the room should be included as well. Once you determine the type of flooring that will work best in the space, start considering colors. The ceiling should be the next thing to consider.
Many ceilings are simple, neutral areas.
If a large expanse of blank ceiling looks just plain boring, you can break up the space with details that complement the flooring. Ceiling light fixtures, fans, or even skylights can add interest. Don't be afraid to consider painting your ceiling. Start a shade or two lighter than the chip you like since the color intensifies when you put it on a larger area. Wall materials and their finishes are third on the list.