they rejected the photos for a reason I don't understand

Hi @Juliett5555,

The first file is underexpose. There is blue color fringing at the highlighted edge. That might be a concern.

The second is also underexpose. It is noisy and has a halo around the edges. That building has intellectual issues also. You need to remove signs and logos that are on the building.

It would appear the third has a slight white balance issue. There seem to be a very light blue cast.

Too much of the roses is out of focus and that too is underexpose and has a white balance issue.

The fifth also has a white balance issue, underexpose, out of focus and is noisy.

The sixth file is truly black and white with no details. Please do not convert your images to black and white. Also it is important that details of you subjects are visible.

Best wishes

JG

Photographer and Nutrition Author

Your last one is an out of focus black and white picture with disturbing elements in view upper left and especially upper right. 

flower images need to be correctly focussed on the blossom. And there are millions of flowers in the database, so the picture really needs to standout for one or max two sales.:It's probably not worth the work to upload and keyword those pictures. 

If you are new to stock, you should consider these resources: https://helpx.adobe.com/stock/contributor/tutorials.html
Please read the contributor user manual for more information on Adobe stock contributions: https://helpx.adobe.com/stock/contributor/user-guide.html
See here for rejection reasons: https://helpx.adobe.com/stock/contributor/help/reasons-for-content-rejection.html
and especially quality and technical issues: https://helpx.adobe.com/stock/contributor/help/quality-and-technical-issues.html

6 photos are too so many to give meaningful feedback on, so I'm going to pick one, DSC-06585 (Yellow building).

The entire perspective is a bit off on this, I suspect the photo was taken slightly from the left.  At 18mm, there is noticeable distortion as well.

The main subject is underexposed.  I believe the camera metering was fooled by the sun beam on the sidewalk.

The photo doesn't appear super sharp, and there is a lot of halo'ing around the statue, letters on the building, and a few other places.

Hope this helps!

You may not understand the reason, but they gave you a reason. It's very important to tell us, so we don't waste your time.