Well let's talk about how money can be made by selling pictures online. Yes you heard it right :). I came across some websites through which you can sell your pictures on rates as per your demand.
1. If you have your own channel or facebook page you can easily promote them from there.
2. Use editing softwares to add more touch in your photos.
3. Learn from fail submissions as most websites gave reasons why you failed to succeed in submitting your photo so it is best way you learn from them.
4. Join forum of photography and contribute their your experience because it is valuable for others.
5. Use good keywords to make them in reach for others.
So that's all folks. Will be back with more tips and websites. Till then happy earning :)