Excessive photos refused

Hi @Valdeci5EB7,

The hibiscus is underexposed and too much is out of focus. There are also detail lost. Also there was a shake.

The second flowers also is underexposed and too much is out of focus. It seem to have a white balance issue also.

Have a look at the Stock Contributor Learn and Support,

The Tips to get your files accepted and some additional details that will help you submit more acceptable photos.

Other microstock agencies have different standards for acceptance. 

If you're having a lot of rejections, check your equipment. 

• Your camera, sensor and lenses may need cleaning.
• Check your light meter. 
• Get additional light sources.
• Use a stable tripod, etc... 

That said, Adobe has millions & millions of perfect flowers to choose from. Sales potential is low in such a fiercely competitive keyword category. 

I agree with @RALPH_L , these are underexposed and lack sharpness.  Make sure to zoom in on the details, between 100%-200% to spot the technical flaws.

Shooting at f1.8 and 50mm and that close to a subject would have a pretty shallow depth of field, I'm not surprised there is so little in focus.

Hope that helps!