I'm not sure it's a benefit to SEO, but do you GeoTag your images?
If like me you like to see maps of where images were taken, then new cameras and phones fitted with GPS geotagging functions are excellent. However, if you have a camera without GPS functionality it's a wee bit more difficult.
With software such as Lightroom 5 it is easy to apply the location to an image in post production. Once assigned to an image when uploading to Google+ the location can be viewed by anyone you have posted to, by them opting to view photo details.
I have wondered if assigning your business address to the image would in fact be better? Thus when you post publicly then when any potential customer views your image, they may opt to click on the little map attached to the image. As long as you have your business registered with Google Maps, clicking that map associated to your image will take them directly to your business location and link.
It is possible to set up Lightroom so that when you import any image it will automatically assign your copyright and information to that image, including geo-locational information.
When you then publish that image or images it will have your business location attached.
This is an image on Google+ of one of my dogs, Meg, who sadly passed away a couple of years ago, the process described above was applied to it. You will see that location map is attached along with website link and Copyright notice. This is all automatically done in Lightroom.
Below is the map that the link takes the visitor to