I uploaded images but they rejected, I want to know the reason why they rejected my images.

Machine generated artwork can't replace real artists.  AI makes too many mistakes.  And it's not smart enough to know what mistakes it makes to fix them.  That's the contributor's job.

1. Examine every quadrant of every image at 100-300% magnification. 

2. Correct all the mistakes if you can or remove the image from your submission stack. 

3. Compare your very best work with current Stock inventory:

•     Making sure the keyword isn't oversaturated with similar content.
•     And your work is as good or better than what Stock has.
•     https://stock.adobe.com/search?k=light%20bulb
•     https://stock.adobe.com/search?k=%22woman%20headphones%22

Hope that helps.

@RALPH_L  has pointed out numerous errors in the image with the wiman, and there are others, such as the seams in the shirt. You must zoom in to 100% and inspect every area of the image before submitting. At a glance at regular screen size, the image might appear to be okay, but doesn't stand up to close scrutiny, 

The light bulb image also has numerous drawing errors, one of which is highlighted here: