When the photo booth is launched, users use this feature for capturing moment of their favourite super animals or use it just for fun by taking a photo or recording it. There is something missing on photo booth, there is no animation of idle and run without equipping any weapons including the melee weapon.
The two images showed the cat unarmed, the first image is in idle inside incubator pod taken from research lab menu and second is run while using hamster ball taken from the match. Maybe use this existing animations for the photo booth usage.
My suggestion is to add this animations by select unarmed on weapon selection then select either the idle or run in 'action' animations. I'm also aware that there is an other action animations like creep, creep (walk) and jump roll which is need to rework it for unarmed animations.