Images are rejecting due to quality issue

You're making rookie mistakes. Re-read your Contributor User Guide carefully. 

• https://helpx.adobe.com/stock/contributor/help/reasons-for-content-rejection.html
• https://helpx.adobe.com/stock/contributor/help/quality-and-technical-issues.html
• https://helpx.adobe.com/stock/contributor/user-guide.html/stock/contributor/help/photography-illustrations.ug.html
• https://helpx.adobe.com/stock/contributor/help/editing-dos-and-dont.html
• https://helpx.adobe.com/stock/contributor/help/how-to-submit-distinct-content.html

Hope that helps.

Black and white images are rarely accepted. It happens, but not often. Buyers can turn color images to black and white but not the other way around.