I recently started uploading my work to microstock sites and became very perplexed with Fotolia.  I submitted 10 photos to Shutterstock as part of my application and 9/10 were accepted.  I submitted the same 10 to Fotolia and only 1 was accepted.  Not only were 9/10 rejected at Fotolia, but they were rejected within 5 minutes of their submission.  I'm not sure what's going on here, but I'm considering terminating my account with Fotolia rather than continuing to waste my time uploading rejections.  Any opinions on the matter?  Should I stick with them and keep submitting content or just put my efforts elsewhere.

Here are the photos I submitted to shutterstock:

http://www.shutterstock.com/gallery.mhtml?id=252346

I already have 33 downloads in 1 week from those 9 photos.

Thanks for the input.