Gee, I didn't realise just how large it is.
I am in a learning phase too as far as the flowers that the different varieties produce. Your pictures give me a great indication as to size, there's nothing worse that seeing a lovely flower and trying to guess its size as there is nothing to compare it with, thank you now I know with this one.
I was under the impression that this was a relatively small flower.
To me it looks like it needs repotting, that particular pot looks too small for the entire plant. It seems to be trying to "crawl" out of it to get some more room, although even in bigger pots they tend to do the same thing at times.
Apart from that, it is a very healthy looking plant, one I would be proud of.