The flower is 14.5 cm wide, 13.4 high. The 'sail' is 7.5 cm wide and 6.2 cm high. As you can see the bloom is beginning to deteriorate. It's been in flower for nearly 3 months.
Interesting... I wonder what would happen if you crossed the Pacific Shamrock to a Maudiae type with better form (something with sukhakulii in it, like maybe a really nice Macabre).