My client decided to have a wood ceiling,We chose the same color as the cabinets we refinished throughout the house, however, we went with a lighter shade of that color. The pictures show before/after, as well as a video of spraying the knotty pine. We just did 2 passes on every piece, with the same formula stain as was done on all the other wood in the house!
The beams and the mantel on the large fireplace were faux beams — made of styrofoam and fiberglass. We used the same stain, and purposely went darker — also adding a UV package in the finish to ensure that the beams will not fade!