I bought the house I live in because it has an all weather porch with 7 windows near my easel. Artists are certainly concerned with the light and today is so rainy and grey (as it has been most of week) I probably will not paint. When the sun comes out tomorrow, the painting will certainly change. When you apply acrylic paint, it usually dries darker, so it’s a constant adjustment. I often mix paint on the canvas, rather than on the enamel palette. But of course, when you add another color or shape, you have to adjust the whole painting. If the shapes and colors don’t work, it’s like a discordant note in a symphony. But when they do, WOW……so thrilling.