I regularly browse YouTube for interesting ikebana related videos. Recently I came across this video documentation of the latest exhibition with the Hong Kong Branch of Sogetsu Teachers' Association. The exhibition was held in November and was titled "After The Typhoon".
It's a quite long amateur video, but it gives you a nice opportunity to explore this great exhibition. I especially like the avant-garde arrangement with tree trunks and branches flying in the storm and the large bamboo construction work. There are several other really nice arrangements too. Which one is your favorite?