I have notest on on the Wiki images another difference between mine, the dwarf Orinoco and the Dwarf Namwah.
In the dwarf Orinoco and the Dwarf Namwah Bananas in the bunch grows from bottom to top.
In mine they grow in the opposite direction top top bottom.
I'm not sure if this makes a difference.
This is a bigger image of my banana's bunch
Banana Gallery - Banana 1