Maybe you have similar situation in your bonsai garden. You have not enough time to work on all of your trees. There are some on which you work less than needed.
This is the case for this hawthorn from my collection. Tree is collected yamadori material and it was collected in woods back in spring 2010. I planed to style it in winter but failed to do so. Now it is bit late and you cannot see the structure of the tree. So I decided today just to cut grown shoots from top of the crown. Lower shoots left untouched to help thicken branches. I was lucky and tree showed few flowers about two weeks ago.