Can anybody give me advice on how to improve my picture of the International Space Station?

The link is here:





http://www.flickr.com/photos/remyworldpe鈥?/a>





I have already had a little play around on iPhoto. It is a 50 second exposure ISO 400.





Any other general feedback would be great too!Can anybody give me advice on how to improve my picture of the International Space Station?
It looks very beautiful to me, you should leave it how you have it right now. =3