Sinn. guttata

Have you seen a Sinn. guttata like this ?  I got it long time ago from a friend (maybe it was self seedling, not sure). When I first saw its bloom, I knew this one is a bit special but since I did not pay much attention to large size Sinningias before, so I just put it in 3 inches pot.  Finally I have enough space to settle it down, and the pay back is what you can see.  :-)