Another one of my favorite subjects are what I call Cloudscapes, instead of landscapes I look up. Fluffy clouds and bright colors make interesting subjects. Sunrises and sunsets help add another color dimension. They can also have an Artsy Abstract look and feel. A lot of my Cloudscapes I shoot with my iPhone using the app ProCamera. It gives you +&- exposure control, a nice HDR feature and a variety of low light shooting features.