I've never grown it myself, but every time I've seen it the stem has had a bend - it just wants to grow that way? The flowers also, from memory, are quite tightly reflexed and kind of washed out in colouration. By comparison this example was saturated and wild.
I just didn't recognise it as Louise.
The best of the Pearl series that I've seen; Jennifer:
A different example of Pearl Jennifer won Champion Single Bloom. I found Pearl Justine tolerable enough to enter it:
