Fascinating mixture of historic village scenery, wildlife, weird church tower architecture, several kinds of mill and then the Thames at the half-way mark. And all those film and TV locations! I wonder why the area is so favoured by media people? I don't know any of the countryside your walk went through, apart from Hambleden Lock (from walking the Thames Path years ago and, even then, I was on the south side of the river). I will aim to visit the area sometime soon as it's not hard to get there from where I live.
Thanks
John