|All types of links help your web page's position.|
Sites for putting in these links include Red Gage, Flickr, Facebook, Google Plus and any other sites where people upload photos. If the photos are special, reduce them in size so when people copy them (it's a tought act to control what happens once they are on the web) they won't get a high-resolution photo like the one you have on your computer.
Regarding the photo information: Put in a description in the photo to make it unique. Use at least 3 sentences in the description and don't copy the information from other sites.
Another advantage of uploading photos with this information is that you can increase the visibility of your work when people are looking for images. Good keywords are important. Good information leads to more people being familiar with your work.