MHBonsai
Chumono
That is one beautiful and robustly healthy tree! Congratulations—your hard work and attention to detail is paying off.
As to pots…personally, I think it would look fabulous in an oval or soft rectangle in ruri blue. I think that deep blue would make the white blossoms look just brilliant by contrast. That being said, I will admit to bias…fully 80% of my pots are various shades of blue.
I've got the same issue, but with green pots! Can't seem to get enough of them...