Like Max said its niche traffic and the hits though few should be good.RR will take awhile to get listed PK you might get lucky.
Make the most out of what you have though you can take each gallery and submit to tgp's.
Take the links and make a hub and put a link to then on your freesites and your tgp listings.
Weed out the ones that don't list you.Your sites are listable also make the recip table bigger mix it with big and medium ll's and middle ll's and smaller ll's. try using 9 recips.
Just my 1 cent for what its worth
