Hi, you can't see your world on your profile because you've set its state to private - if you wish for others to be able to see it (and the same goes for the content inside your world) you can change it to public. To do this for your world, open the Articles & World Manager, click on the world name on the top left if you're not already seeing your world homepage edit page and then click the screw icon button called Advanced Settings. On the top right side, under World Settings you can change the state!
This will reflect on your profile which is the public facing side of your account, so others can see your work.