Really nice shot Paul....you dont often see all that blue neb around this target...I have seen similar in {Mike Strongman} image which won the David Malin award.
http://www.pbase.com/strongmanmike2002/image/55931133
I think this target would be a perfect candidate to layer a short exposure so its not so overexposed in the middle to get rid of that ball of light....I still dont know how to do this even though Scott sent me the link on how to.