This is:

Epidendrum Pacific Vista 'Full Sun' X
Pretty Princess 'Tropical Splendor' Cal-2870.

It is one of Cal-Orchids more recent hybrids. It is unique, because
as the flowers age they turn from yellow to dark pink, and even white.

The hybridization work of Jim Rose has resulted in an abundance of
ever larger and more colorful Epidendrums. Each year the profusion of
color that fills his greenhouses is more spectacular than the last.

Now if I could only interest him in introducing the lovely fragrance
of Epidendrum citrosmum into his work ...