Is it good, bad or ugly , your views please.

Is that a large portion of the picture or 100% crop?

In any case i wouldn't worry. The K-x is a fine camera with a good sensor and for shots like this having a good lens is much more important than having the latest camera body.

If you want to see what can be done with much more out-of-date gear than yours (a K200D with a manual 28mm lens mounted via a reversing ring) try these...

http://www.thomasshahan.com/photos/

Best wishes

--
Mike
http://www.pentaxphotogallery.com/artists/mikeward