I think your plant is mislabeled. Hsin Buu Lady 'Y.T.' is (L. anceps x Slc. Wendy's Valentine) and is solid red on a relatively long infloresence (12" +/-)
That's a beautiful orchid but, like the previous post said, I don't think it's Buu Lady. I've had Buu Lady for many years and I've seen others. It's a red flower with a yellow throat.