Onidaruma posted the three initial design roughs of Ryusei, Kotarou and Akashi in GENBU-styled uniforms on October 2nd.
For reference here are both of GENBU's standing art, one back when he was developed by Dreamtonics and pre-VirVox team and another when VirVox officially started activities.
He later posted the lineup with altered design on October 3rd stating:
I posted rough designs of uniforms that I made a long time ago, after looking through my files again I found a version with more appropriate designs.
There are a few design changes, more prominent on Kotarou and Akashi.
Slight different headgear and collar
Gems in place of insignia on shoulder guards
Different insignias on chest and drapes
Different waist accesories
Forearm accessories are on both forearms
Purple Kunai-shaped things are reduced to two and now Gray
Leotard no longer connects to stockings
Absence of tail (? Could just be hidden)
Translucent black shirt is now fully opaque
Hair ends in blue rather than going teal like his undercoat
Undercoat is now a gradient from orange to teal rather than flat out teal
Different insignias on coat, specifically on the chest and drapes
Shape of the pants are more simplified around the crotch area
Although Onidaruma remarks that he prefers shape of Kotarou's stockings and the material of Akashi's shirt from the initial design better.