Don't be afraid! If you want to write, just write it. I know its scary at first because I felt the same. But when someone read, give a vote or leave a comment, the "im here and im proud of myself" will definately shows itself. Write whatever on your mind and draw whatever you like. Don't think about the scenario of "what if people dont like my story/arts" think about the scenario of "whats gonna make my reader enjoy my story/arts even more"! ^_^