Social Media Icon Set Hard Rejected

Hello All,

I submitted a 600+ icon set including 50+ social media icons in 10 different designs but I got a hard rejection and the below email arrived -

After completing our review, we’ve determined that ‘Social Media Icons Bundle’ isn’t
at the quality standard needed to continue forward with the review process on
GraphicRiver. As the submission is too far off the standards we require, you’ll
be unable to re-submit on this occasion

Please help me to understand what went wrong.

Can you give us a screenshot with your item ?

This is my preview depicting all icons in different designs -