Sorry this photo was taken in 1997. Cant help you on exposure. this was my first time in trying to get this. All in all I did take about five or six shots at diff exposures,this one was the best. Ever since then have been able to get this same effect again ?
I guess it is trial and error and dont worry to much you acheaved it once so you can do it again. Good luck and cant wait to see the next one you doIn Memory Of My Idol. Steve Irwin "Crikey what a beauty"