Jens I looked at your 10, I wouldn't submit those. Especially the swan with the tilted horizon - they don't like tilts, I've learnt that much!  I can't speak for the butterfly as I don't shoot insects, macro or any nature that requires me to be patient
i'm still on a learning curve as to what they do and don't like, but I don't think the compositions or processing will wow them.

Perhaps my suggestions are a bit more Stocksy!!!? :-)  Agencies are different, or perhaps you haven't noticed because you have been lucky enough to have the same images accepted by all of them!1

I'll be watching with interest (curiosity, really) to see how they fare.  It's a whole lot different.  Istock (original) had a pretty big 'captive' buyer base before it went 'commercial' because of it's humble 'barter-like' initial offerings.  In my opinion they were a kind of library come bookstore and were super successful because they already had lots of contributors and lots of designers on board that they had built a relationship with, when they started really selling.  The majority of the other adopters were bookstores (so to speak) right out of the gates and therefore had to work a lot harder at attracting the sellers and particularly the buyers.  So, I'd say they are just another bookstore.  A better one?  That's to be seen.

IMO we were sold down the river...and well - once bitten twice shy, as they say.  Curious what book (literally) is the manifesto, this go...

Expectations were very high based on the previous IS success.  It seems the under current of IS promoting of the "artsy" stock shooter and ignoring the guy that sells 500,000 "too stocky" images has reared its ugly head.  A lot of the images look the same to me.  It's like the kids school who don't fit all look the same while  laughing at the popular kids for looking the same. 

Read the founding story.  A guy wants to sell fine art online, but can't,  then ends up with a stock site and I guess he never wanted as a commercially geared site.   Seams like timing was everything in 1999.   Now, its a much harder.   

I just wonder if they launched Istock part II would it slay the getty monster again.  Not a lot of happy contributors out there.