I love orchids like this one. They teach patience which is a trait I need to develope. I have had a couple like yours that took forever to bloom. The sheaths would develope and then stop and just gloat at me. The ones that dried on me eventually got the best of me and I opened them. I found that they budded and bloomed in a very short time. Makes me feel good to be in control and say to hell with patience. Lol. Your orchid is lovely and well worth the wait.