I believe this one has the reversed version of the Begonia 'Merry Christmas'
The color seemed to have more stable green pigmentation for it's photosynthetic function.
I understand that there are a huge range of cultivars and hybrids.
What I'm showcasing here are what's available in the local market around my region.
Begonia Common Names and Images
Here is the link where I had put together a list of all the begonias that I had come across. A database of all the different types & their characteristics. Please click on the link on the title above for the post.