It has to be one of the most beautiful Sinningia's I've ever seen! I have a couple of the mini's and a couple of the micro mini's but I sure do love the looks of that big Peachy Propeller ... the foliage is pretty and those blooms are such a gorgeous color!
By the way ... I'd love to see a photo of your terrarium, I think I see Calathea ? leaves in that pic. I have two Calathea plants, one is in a terrarium and the other sits out on a table but I've been thinking of transplanting it to one of the terrariums.
