yes .. however, you need to be a full member to do so as you need to create your own private group to either post hidden works or move your viewable works into your own hidden section

Click on 'My account' in the menu which will take you to your profile page .. above your profile you will see an "edit" tab .. when you click on that tab it will bring you to a page where you can change all of your user settings, including your password, avatar, guestbook settings etc .. on top of that page are some other tabs. To edit your profile you need to click on the 'Personal Info' tab and the 'About Me' tab