The best camera isn't just the one you have with you, it's the one you also know how to use. Often times we take a nice picture but there's one or two elements that hold it back from being great. I may not know all of the tricks in the book but I know a few that will help improve anyone's pictures.
1. Remove distracting clutter in the image. By far my number one tip. Too many visual elements distract the viewer from your main subject and feeling. This often includes cars, signs, random objects, telephone lines and buildings. Of course sometimes these elements add to a more grungy edgy look as long as they aren't overbearing they can potentially work. But it's my recommendation for beginners to try to cut these things out to practice being super aware of what's in the frame.
2. Get a good exposure. Camera phone sensor quality is rather poor and doesn't usually respond very well to editing. Most all phone cameras have exposure adjustment settings where you can brighten or darken an image. On my camera I have it so that the exposure adjustment control is quickly accessible in the shortcuts panel. Also note that the camera makes the image brighter or darker based on the overall brightness level. Sometimes it's necessary to change angles to adjust the exposure.
3. Make the horizon straight! It just looks unintentional when it's crooked :/
4. Post sharp images. Often times, especially in low lighting, the subject can be blurred either because they are moving too fast or the camera isn't being held still. Usually the best way to fix this is to brace the camera very close to your body or on a stable object. Other than that you can try to add more light so the camera doesn't have to keep it's digital shutter open to collect more light, allowing the movement of objects to cause streaking. Or, you can try to keep your subject from moving as fast, try to slow them down somehow.
5. Clean your lens. For those of us that look at a lot of mobile imagery on the daily we all know that when we see soft hazey images that glow came from a not so romantic source: greasy hands and hair! It takes two seconds to wipe down a lens and it won't look like we're looking through oil.
There are some other really important factors that go into getting the most out of your mobile photography. Light and post processing are among the most important which I'll cover in future posts :) hope these tips help and like always feel free to shoot me any questions you might have. Thanks for your time.