Midway carnival ride called the "Evolution."

I took this photo at a midway carnival and had fun learning to use

the slow shutter speeds at night. This might be one of three photos

I have that I consider somewhat decent out of probably 20 that were

shot. I figure that practice makes perfect!

Please provide me with honest critiquing. I am a rank amateur that

is still learning the ins and outs of how to use an SLR-type camera

and want to make it into a serious hobby. Encouragement is nice, but

true hard-core honest critiques are desired!

Thanks in advance.