One of my favourite scenes; the bonfire. The May Queen and Green Man dance around it, then light it, and then dance around it some more.
The remains of the Horned God are discarded onto that bonfire, so the burning of it represents the burning of those remains.
I was not at the stage where the Horned God dies and the Green Man is reborn; if you want to see pics of that, you will have to go to the gallery linked below!