Rejected my logos, please tell me your opinions why ?

I put my first logo, but unfortunately I was rejected. Not explain me why just: “Thank you for your submission. We have completed our review of “Meditation logo template” and unfortunately we found it isn’t at the quality standard required to move forward, and you won’t be able to re-submit this item again.”
Can you tell me your opinions about my work?
Maybe i understand mistakes and icorrect the future.
Thanx in advance.