I swapped few girls in and out. Also dont mind the Icons - all of these girls are maxed out on affection
(with the exception of LOL chan, but I got her like yesterday/today, depending on the time zone you are in), but I dont always use their affection skin, since many times the basic artwork is so much cooler.
Cerys is my top tank, Sarah is my off tank for a side lane when I need to stop gap some charging LT. IS-3 Alyiona is my back up tank, when I need to throw something fast and sturdy out there in case the mane line is broken.
I run a siege comp with Cerys and long range TD in the middle and fast, semi durable semi offensive Mediums to run the flanks. Edna and Polina are assassin types I use mostly for Invasion missions since they can get out there fast and punch the Light type enemy commander down fast. I am grooming T-62 for the same purpose but you can see on her lvl that she is fairly new to the unit just like Leopard lol.