Why are these hard rejected?

Hi guys,

I am new at this site and love it. I am trying to be an author here however all I get is hard rejects. I can’t seem to find the reason. Can you guys please point me in the right direction?

Below are the little projects I sent (without watermarks of course) for review but all I got was this:
"After reviewing the animation, we have decided that it does not meet Videohive’s strict quality and originality standards.

When reviewing files, we take into consideration the broadcast quality, usefulness for our customers and flexibility of the file. Unfortunately, this animation does not meet our criteria."