Hi my friend! Newcomers community is for the achievement program, you can post on Steemit Nursery, Steem Geography, Writing & Reviews, World of Xpilar, or any other community on Steemit (there are a lot)

About your questions:

1- You should go to the SteemWorld page and add your username. Here is the link to your account. Try to keep your voting power up to 80% so you can give better votes.

2- Yes, that's normal, you're not doing anything wrong. It's because a small % goes to curators. In this case, you vote, you are the curator, so you get a little reward depending on the time of the post, the among of reward, and the number of votes that the publication has.

I hope it had helped you!