Photos rejected due to "Technical Issues"

@alessandro_borelli,

Nice pictures, but as many before you, technical details means defects in the pictures. The most obvious defect is noise:

Then you may have a white balance issue and for sure, your pictures are missing contrast.

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