Congratulations,
Your bananas look great! I've purchased several bananas from the Bamboo garden's fall festival - their banana patch inspires me to try different varieties. Here in Savannah, I usually get flowers the second year after I plant them in the ground. The veinte cohol's will flower and fruit the same year if they start out the size of yours.
If they do flower this year, it will likely be too late for the fruit to develop. I'm hoping for a mild winter this year and a bumper crop of bananas for all of us next year.
SR