My first thought is that you'd have to be careful with the Citra as it would probably overpower the others. I've heard Glacier is a little like Cascade except spicier, and Belma gives off a very subtle blueberry/strawberry/melon aroma (but little-to-no flavor).
I currently have 4oz of all three of those hops sitting in my freezer so I'm very interested in what others think.