I am new to this forum [obviously]. My wife and I love art . We often visit art museums and galleries when we travel. We also enjoy painting - although we tend to favor different mediums. I am a mechanical engineer and will soon move to part-time work (practice for retirement). I am really just now getting my studio put together. I built a shadow box that rests on top a work table. It is based on Marks design . I still have some work that is in progress - like lighting and balancing light from the painting area and the shadow box. Comparing whites with a color checker is a fabulous idea. I am glad I saw that video!