This is so good - you were able to compose a diagonal and make it an artistic shot- not easy when dealing with fungi. Here in Australia we have a very similar one - a bracket fungus we call "Rainbow Fungus" and it has the same coloured zonal patterns with light on the outside. It is Trametes versicolour. it may well be related to this one of yours. fav
I have just googled our version and it would seem to be the same as ours :)