Here we venture into the realm of color. Using your now familiar subject of produce, you will attempt to replicate colors as they are found in nature. Take care not to slip into left-brain mode. Render only what you see. You will be amazed at the sheer variety of colors nature produces for effect. Red, for example, may actually be a combination of red, violet, oranges, blues, etc. Be sure you look closely. Only close scrutiny will enable a faithful reproduction.