Hi @humaira.

You need to read follow link post. This post not belong to me. But this is best post for picture tagging.

I feel you need to learn about targeted tag for your picture. if your picture is original and you not got upvote with best reward thats mean you need to learn

Post Link: https://steemit.com/introduceyourself/@photocontests/readme

I recommend you to add these tages ::: photography promo-steem beautyphotography