I'm trying for the third time to get into Istock. I do know what was wrong with my first ones (composition, variety, and ISO) and have taken new pictures. They were all shot at 100 ISO except for the girl which I can see there is some noise, but I didn't want to do too much reduction. Can you tell me if you think any of these are application worthy? Critique would be great as well. I was thinking the bike, green plant, and the licorice (the first three). Please don't tell me how it's not worth applying there in the first place. I'm looking for serious criticism and advice.

https://www.dropbox.com/s/sk458j4wf4006p2/Jake_BMX.jpg
https://www.dropbox.com/s/hsmr0knfr068wtu/FrontRed2.jpg
https://www.dropbox.com/s/1nyk954jir8vmfa/Hosta_UpClose-2.jpg
https://www.dropbox.com/s/48rxiiwkddd6yon/RedCandyRight.jpg
https://www.dropbox.com/s/aeai5gpkk8iejre/PinkBrownPlantLeft.jpg
https://www.dropbox.com/s/k0qm1zm1o6sict0/Crane.jpg
https://www.dropbox.com/s/3oognqhksc48cvu/BuildingPink.jpg
https://www.dropbox.com/s/ydygqohgoc5h7x0/GirlPromDress2.jpg
https://www.dropbox.com/s/c6c9sp1e9dlfmb9/RocksShallow.jpg