Hi Leslie,
That's a great orchid, it reminds me of Baldans's Kalaidescopic but I can't be sure. It's sure got pretty pattening.
My tip with Phals is always to get your watering right. When you water, water thoroughly and get the medium thoroughly wet, then drain it well and don't leave the pot standing in water. If you have a clear pot then you should water it when the roots, right down to the bottom, go silver. If not use a skewer pushed in to the medium, don't water until (when you pull it out) it no longer looks damp and does not feel cold if you hold it against your cheek.
Great to have you here, and hope you enjoy keeping orchids as much as you sister.