Nice! Could be worth going back to the same tree in a little while, see if there's another flush. Oysters will fruit at almost any time of the year, as long as there isn't a hard frost (probably not yet this year) or a long dry spell (unlikely).
Found an incredible enchanted forest this morning, really quite tricky to get to cos very muddy and also required crossing a fast stream. But worth it, saw a load of very old trees and loads of amanitas, amongst a few others.
Was tempted to pick them but I don't think I'd actually ever eat them, unless I was with someone who knew better.
Some very interesting large and hard bracket mushrooms as well