I remember seeing these in discord. They look really nice. I see the catlady is wearing an undergarmet but not an uppergarmet, does that mean she's... semi naked xD? Overall great work man, it's a cool style with nice linework and the characters are fire.
There are a few anatomy features that could use some adjustments though, particularly on the lower body part (hips, bit of the bums and legs. Some hands and postures could probably also use some adjustments, like the hand size or finger positions.
focusing on just one for an example:
I chose this example because I actually tried a very similar pose not long ago and ended up focusing on these nuances when working on the piece.
Because of how the body rotate when we "look back", when you look back and rotate the torso in the oposite way, the hips will naturally rotate correspondingly. To try to force them to rotate on the opposite way feels a bit weird (you can try to stand up and try it, try to look back and rotate the torso and see where the bum is now located).
The arm and elbow is raised a bit too high. If you try to rest the hand in the hip, the elbow really can't be as high as the boob.
The hand correspondingly is hard to tell, if the thumb is resting on the hip, then the fingers would naturally point to the front, but if the fingers are resting on the side of the hip, then the thumb would naturally point to the front.
Keep it up man, Cheers!