My painting teacher, Jim Faber, used to say: “paint what you see, not what you THINK you see! It’s a call to observation. Instead of assuming that the sky is blue and the leaves are green, take a look. How does the light affect the colors? What are we taking for granted? What have we not seen?
Nature is a never ending source of wonder, and we miss out when we don’t observe the full scope of beauty that is before us. How much we gain by observing the world around us. Here is a youtube video that explains this concept: Axiom #3 Paint What You Really See – YouTube