Hey there!
You could improve the gesture of the pose a bit, since keeping the body completely upright makes it feel a little stiff and takes away some of the dynamism.
Try tilting the shoulders slightly, and as a result, the torso as well. In a pose like this, the body naturally leans to one side to maintain balance (or at least that's what happened when I tried to mimic the pose, lol). You could also raise the leg a bit higher and tilt the hips slightly in the opposite direction of the shoulders.
Doing this will make the pose feel much more natural and less rigid.
Hope this helps! :)