Pete, series 500 actually has an unofficial nickname 'Kingfisher'. I had a pleasure to ride in a green class (first class) car in 2003. This was a fantastic design of 1995
https://en.wikipedia.org/wiki/500_Series_Shinkansen
Not many were made so they were always 'rare' and now these beautiful trains have been entirely replaced by series 700 on JR West. 700 is an excellent train but I enjoyed seeing the streamlined, futuristic design of 500 series (second from the right):
500 'Kingfisher' is in front in this photo:
Of course, these are historical lineups, the trains operating these days on JR West are different versions of the 700 series:
It is interesting that both branches of Japanese Railways (JR) operate independently and develop their own trains. JR East makes more futuristic models. Note that E6 and E7 are missing in this lineup, the photo was taken in 2012 a year before the introduction of E6 and two years before E7:
At Tokyo station, JR East and JR West meet, so you can do nose to nose comparison;-)
Of course one should not forget the Kyushu 800 series which I have never seen, Kyushu is a southern island. The 800 has an official name "Swallow" and an impressive nose too!
It is JR East which is behind the ALFA-X.
Best wishes from Tokyo, Zubi