the left leg is at a slightly impossible angle, but this is great otherwise ^^ keep up the good work!
I don't think it's an odd angle
maybe not entirely impossible, but at least very uncomfortable. i.imgur.com/BkGFhsj.jpg
for the character to bend her left leg like that, the hip would have to be raised accordingly. the leg was drawn in profile, making the pose look slightly awkward.
also, the space between the overlapping left leg and right leg under it is shaded too darkly, creating an illusion of floating, which also helped me notice the leg. i would suggest more bounce-light, such as below.
i.imgur.com/FGxjjQE.jpg
for the character to bend her left leg like that, the hip would have to be raised accordingly. the leg was drawn in profile, making the pose look slightly awkward.
also, the space between the overlapping left leg and right leg under it is shaded too darkly, creating an illusion of floating, which also helped me notice the leg. i would suggest more bounce-light, such as below.
i.imgur.com/FGxjjQE.jpg
It definitely looks a little awkward, and perhaps a little uncomfortable. I applaud you for the picture references, although we don't know what placement her feet are at, or if they were at similar pose as the pics you linked.