Looks good. My next door neighbour's had about 50% defoliation. I don't know what type theirs is and it was the first winter for this tree.
Wes North Vancouver Zone 8b/9a
Keats Island BC Zone 8a
Palm Springs CA Zone 9b/10a
Ya Wes ... no leaf drop on this one, but that could happen if temps ever drop to -10c (god forbid). It's planted fairly close to a south west wall and stands about 7' tall. I have to begin to shape and groom this tree as the years go by. So far only small amounts of olive fruit, but that's OK. I'm not interested in pressing for oil or eating.
Cheers, Barrie.