Beautiful! I also have the 'Sentinel' clone. Mine is blooming size but it has never bloomed. It gets a lot of light but it might need more. It is a big plant. My new growth just matured and no sheath. I will just have to enjoy yours!
How long to do the flowers last. I've been surprised by my first catt flower which has lasted about 6 weeks now, longer than I expected. I just wondered what is considered a short lifespan on these flowers.