Your demos might be good... but I can't see without logging in. One suggestion... if you are trying to showcase your work, don't make people set up an account to try it out. Maybe have a demo site specifically for that purpose that doesn't require login or has a demo account for people to use so they don't have to sign up themselves.

EDIT: BTW, this is exactly how I got my first job... I wrote a demo app and showed it to a potential employer. It was enough to get my foot in the door at a place where I had the privilege of working long hours for low salary until I had enough experience to apply for more desirable positions. Confidence and shoe leather can be as good as an formal education... good luck :)