WOAH-HO HEY NOW! The leg does NOT bend that way! Hold on, I gotta go try to do this pose irl, out of curiosity.
If the red pattern on the pants is the front of the pant... then no, she's totally breaking her leg! I am NOT trying that!
Maybe if the red was the back, then you can actually somewhat rotate it like that... yeah that kinda works... maybe if you're hella flexible, but surely not like in the drawing!