That's because you have less number of followers. So your work is not getting much exposure.
You'll need to interact through commenting on others posts which are of interest to you. That way you can build up your follower base and increase your upvotes and payouts.
If I'm not wrong, the +27.57 is delegated Steem Power, which is provided to give you some voting power in the beginning. Experts on the field, correct me if I'm wrong.
Hope this helps you out.
You are right!