Beginners should avoid shooting directly at the sun. It's best to shoot with sun directly overhead or behind your shoulder.
Also Adobe Stock inventory has millions & millions of excellent sunsets and sunrises. Compare yours with what's already represented.
@Nancy OShea is right with her critics. I just may add the completely painterly look that happens, when you use a phone to take pictures in complex lightning situations.
Your phone simply "optimized out" all detail in the image and created artefacts nicely visible here around that flotsam and the coastline. Examine your pictures at 100% and 200% to check for artefacts like that.
There is no possibility to save this photo.
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