I have by now submitted roughly 300 photos to the 12 highest ranked sites. Obviously there is some randomness in being accepted or rejected. (Like having the same photo being rejected at one site for over sharpening, on another site for softness and accepted at a third site)

I have the worst acceptance rate with fotolia at about 12 percent, shutterstock is about 50 percent, 123RF at about 80 and Pond5, envato and canstock at about 95 percent.

the questions are:
1. do you have strategies how to submit to the various sites?
2. Like: Last weekend I shot skyscrapers, details, building site of skyscrapers. I have edited 25 photos. Is it better to submit all 25 at once or to stretch in three different upload settings over a month or so? When is the acceptance rate higher?
3. different experiences with different sites to this?
4. does it matter for acceptance if your acceptance rate is low? Are you red flagged or is it just the photo that matters?
5. does it make sense to ask to reconsider rejections? Like a rejection of a skyscraper window detail with the rejection reason of property release (can't distinguish the building)
6. I never quite saw the use of the categories. Is there a reason to think more about that when uploading?

lots of questions, lots of sites

I would really appreciate your experiences

cheers

Marcell from Vienna