I think you could always comment on the color -- does it hold its color throughout the life of the bloom and how do the older flowers compare with fresh blooms -- does it change color as it ages? To me yellows just about always seem to fade to white in the older flowers, which I usually don't care for, but I know that others are happy with that in a yellow. So it's important to me to find a yellow that still looks yellow (albeit a faded yellow) when the bloom finishes, and that's the type of thing I would love to have people put in their comments.
And what about the overall shape/form of the plant? Are you happy with how it looks? OPENING NIGHT is one HT that I am totally impressed with because not only are the blooms absolutely gorgeous but the shape of my plant is near perfect to me.
Just a couple of ideas...