it's not really a matter of advertising its the work and how well it's presented. you only have 10 things which isn't enough even for a rolling cart. and you'll have to fix the clarity and cropping issues first. upload lots of work keeping on themes, using lots of keywords. then make a facebook page, get a twitter account, get lots of followers and hashtag everything.
in general you get known, and then you get sales. but you have to have the work first, and not get tied up with free or pay sites that promise you things.
---Mike Savad
MikeSavad.com