Here's some quick thoughts on the characters.
I was abit unsure about this. I don't know whether you want your character to be leaning, if so, you should have her pushing off her front claws. If not, then you should try and rectify this, because right now it feels like she's gonna fall over. My half assed suggestion is to extend the legs back a little, like so and give her slightly bigger feet.
Kawaii, the sense of weight and balance aren't working, she feels like she's floating. your pose is alot like mine for my character, so I made a quick alteration of what would ground her more.
Also keep your eyes at Half point.
the 3/4's are always hard, just remember that the ribcage is pushing forward as is the pelvis, you want to get that slope in there and have the legs jutting downwards.