Blue is the color of calmness, productivity and masculine sophistication. Baby blue will always be a popular color choice for young boys, while different hues of cyan can be used to great effects in children's bathrooms to create an underwater mood with the right decoration. When applied to a ceiling, a light blue can conjure images of a cloudless sky and increase the sense of space. Pale and medium blues can be painted around the house to achieve a cooling effect. https://youtube.com/e/b6_WEt9k_Hw
When painting the trim, you don’t have to be neat. Just concentrate on getting a smooth finish on the wood. Don’t worry if the trim paint gets onto the walls. You’ll cover it later when painting the walls. Once the trim is completely painted and dry (at least 24 hours), tape it off (using an “easy release” painter’s tape), then paint the ceiling, then the walls.