I had the strong feeling that I've seen something a lot like this before, when I went to start writing the post on it, but whatever flower I was remembering, I couldn't find it when I looked back through all the posts tagged "Orchidaceae." (This one was the closest I found, and its only similarity is in the shape, when what I was remembering as similar was the color.) So who knows what I was thinking. Maybe I've seen so many orchids now that they're all blurring together for me.
Bratonia Charles M. Fitch 'Izumi' = Brassia verrucosa x Miltonia spectabilis (Ref.)