Catherine was for me, as it appears it was for many others here, a frimp. It's not something I normally would have chosen for myself, but I find myself liking it. It's definately one of the more openly powerful scents I got.
In the little imp: Whoa rosemary! That's about all I can smell right from the imp. There may be other scents playing around under it, but it is by far the most openly loud and overbearing.
Wet on the skin: Still rosemary, although it's toning itself down a little
Dry on the skin: This is where it gets nicer. As the rosemary dies down the rose comes out. Personally, I don't get any of the orange blossom, but that's alright. The rose unfortunately turns a little powdery on me, but paired with the herby rosemary it smells nice.
I like this little imp, and I'll keep it, although it's not one of my favorite scents, and I have bad images associated with rosemary (due to a person of the same name and her devistating impact on my family)