This was a very good experience but I made some mistakes. Gnine delivered well.
I should have realized that there would be male and female StumbleUpon pictures on the 50 ratings. I have a nutrition website that I'm promoting. It looks very much like spam because some of the females are talking about testosterone level studies and things like that... pretty unnatural, but I should have specified male/female to gnine.
Just something for the rest of you to keep in mind.
My only suggestion to gnine would be to not have a profile pic on every single reviewer. Not every stumbler has a profile pic, so maybe only 35 out of the 50 reviewers should have a pic uploaded.