A great photography tip is to make sure your shots have depth in them. An easy way to achieve that is to be sure that you have a background, a middle ground, and a foreground. Having all three of these will give your pictures a sense of atmospheric perspective.
Play with the shutter speed on your camera to catch unique and wonderful photos. If you have the right shutter speed, you can get beautiful photos that would normally happen so fast that the human eye couldn't process it fully. Try experimenting with shutter speed and a tripod at a stream or waterfall for some great photos.
Understanding color and using a color palette approach to composition can give more power to your photos, particularly when you want to use accent colors.