Normally I'd be thinking you are showing off your fish. And maybe you are, but I don't care because they are so so beautiful. That tank full of blue and marble females is just lovely. It seems like you take good care of your fish, and that's commendable.
Gosh I wish I had 20 tanks and could have as many bettas as I wanted. Sadly, that's too much work...I'll be sticking with my six. And, I really don't want to be "that betta hoarder lady."
1 - 55 gallon planted community
3 - 10 to 20 gallon planted betta tanks
My advice: slow down, think, and be willing to learn. Then you'll be fine, no matter what.