Looking good, Elaine!
And good eye! Both Snow Ballet and Mizoguchi have the same parent - Caulaelia Snowflake. And one of Snowflake's parent is Caularthron bicornutum. I like hybrids with the latter so much that a few years ago I bought a nice mounted Caularthron bicornutum, just to see how this one grows.
My plant has been steadily adding growth and has now a bunch of spikes, I love when that one is in bloom. Soon!