Привет @shuvobd!
It seems to me ... this is too short a post for the curators' interest. They track many posts a day and have to choose who to vote for. Short posts with one photo are unlikely to interest them. Unless, of course, this is a sample of an artistic photo. Read carefully the recommendations of this post.
https://steemit.com/hive-185836/@bambuka/the-second-wave-of-the-program-14-days-of-diving-community-world-of-xpilar
Good luck with the competition!