That's super nice! Love those distinct colors. Please take another pic when it gets to full bloom!
I'm far from being an expert, but I think Oncostele is the "new" name for Wilsonara. I have an "Orange Kiss" that had the label Wilsonara Catatante 'Orange Kiss'; I got it a long time ago when first getting into orchids in a more serious way. But I've seen several for sale over the years usually listed as Odontocidium Catatante 'Orange Kiss'. One of the things I learned when first starting to buy different orchids was that I had no patience for the naming process and constant changes. Drives me crazy... my apologies for jumping down that rabbit hole.
More on topic... Orange Kiss is blooming. I'll try to remember and take a picture.
---------- Post added at 08:18 AM ---------- Previous post was at 08:16 AM ----------
PS and kudos for those nice leaves. Mine always look really ratty and I'm fond of snipping off the ends of them because can't stand the ratty look it tends to get.