I like the effect of the camera shake, but I suspect that you may not have intended for it to be like that. It gives kind of a Holgaesque, dreamy feel to the shot. Assuming it was not intentional, I agree with Tim that you need a tripod or you need to be more aware of the shutter speed you are using. I see this a lot with my students (I teach intro photography) they come up with something showing a lot of blur and they don't remember what shutte speed they were shooting at.
I was on holiday with my family at the time so I couldn't carry a tripod ALL the time, but I did for a lot, and it felt heavy enough. I also knew that I was using a slow shutter, but decided to see if I was pushing it too far with this shot. However, seeing what has happened I would definately (on appropriate occasions) take a tripod shot or few AND a camera shake shot. In future it will definately be a conscious decision though. I will need to get a tripod of my own and I don't have a remote release yet either, but soon I will.
Tripod now bought. Due to being a student with budget constraints it is an inexpensive Velbon. Feels heavy enough (1.54kg/3.4lb) and ideal height for myself i.e. I only have to raise the central pillar about 5cm for it to be at my eye level.