You have to subscribe to the community first so that you can be able to post. I don't think thete is any much restrictions in posting there. A lot of artists are sharing their works there daily and they get more noticed unlike when you post it directly in your blog. Here is a link to WorldOfXpilar community https://steemit.com/trending/hive-185836

You can also search for your country community and post there. You will get to meet people from your country and get acquainted with them.