Kodak has free manuals on taking pictures, including the various settings on cameras. Digital or film, over- and underexposure produce the same effects, cropping is the same, covering the flash with a handkerchief is the same, etc. Read their manuals to learn how to take better pictures. (Learning how to frame pictures, learning the "rule of thirds", etc., are part of it. And in their manuals.)
One of the best pictures I ever saw (aside from Ansel Adams' and Dorothea Lange's pictures) was a snowy scene, with a black fence in the foreground, and way off in the distance, a tiny yellow cab with its brake lights showing. All stark black and white except for a spot of yellow and two spots of red. Nothing special, but breathtaking.