My one and only Bulbo, Bulbophylum Jersey has rebloomed for the first time
The dorsal sepal curles back a long way, and the petals will curl back further and further as the flower ages, then uncurl again shortly before the flower fades. Last time they got to the point of crossing over behind the flower before they uncurled.
The lip is delicately balanced and rocks really well at the slightest movement of the flower.