Why didn't this image get reviewed?

Do you mean accepted? What was the rejection reason? Quality issues?

There is an exposure error, as the picture does not have blacks, as shown on the histogram:

The noise reduction has optimized out fine details. This is visible all over the picture:

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

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