Not considering stupid rejection reasons, what in your experience is the site which constantly pick all the pictures no one else wants and rejects the top sellers on other sites. Simply put thus, the worst of image selectors.
In my case Crestock must get the gold medal for always picking the opposite choice of every one else and has (for me) the sales record to confirm their awkward taste.
(You might have had those "not what we are looking for" type of feedback and then thought, sorry, my bad, thought you wanted something that sells.....

)