The tone of the mask is perfect, the tone of the leaves is very good, green would have robbed them of the contrast between them and the white building!
Hi Roger, thanks for looking ! There is a portion at the rhs where the leaves have NO structure indeed but IMO that has to do with the fact that it was quite windy and that's where the blur could come from. I was down to 1/60 I blieve to remember.
Looking at this I can't help feeling a softer filter, yellow-green or even green, would have given better rendering of the leaves... although this works quite well, of course.