Also, make sure you use a strong backing inside the thighs. I think you're using thin garage sale sign material.
Inside my TK thighs, I used strong ABS plastic that came with my NE kit. If you don't have any available, you can use a generic dust pan from the dollar store.
Look for a white dust pan and cut it up.
Adhesive.
If you're using E6000, it will not hold the thigh parts well. I'm using the ABS cement that came with the NE kit. Once the cement is applied, dry overnight, it should be rock solid.
Here are my TK thighs:
BEFORE PAINTING.
CENTURION PICS