The preview sample looked like pretty decent writing, but it's only what 9 pages? That's not very much story for your buck considering the $2 price tag when there's full novels on there for less than $3. I mean, not to disrespect an artist trying to make money, but it's not a commission, and quantity over quality (price) seems like the better way to market products. (Look at the app market most are $0.99 no matter the quality, just because it sounds like a 'single dollar' and not that expensive, one for one product)
That site even made me consider working on writing again if it could publish to all the brand names, but not sure they'd appreciate the very explicit nature of anthro/furry stories. Or if they'd consider anthro-feral relations as bestiality and consider it in the 'promoting illegal activities' that they have a tiny clause in the contract for. The only thing they explicitly state is "underage stuff or anything of sadistic or illegal nature".
Most non-private erotic fiction like being sold is pretty tame in comparison to what a lot of furs write! I found one of the large erotic werewolf novels that was completely free linked from the 'style guide' as a good example of how to format the stories, and it said 'penis' only 7 times in the whole story and no other versions of the word either, and the feral -> anthro werewolves always shifted back to the third, human, form before they did anything fun. xD