So much Italian here! 😉
It's a good base animation that you can expand on. It's lacking a bit of weight and the movement is very linear. I see Fainder already linked the Graph
section in the user guide.
This might sound weird, but one thing that can be helpful is to stop looking at the animation as a flat piece of art. Instead try and imagine the weight of each body part. This can be super helpful when you get stuck with an animation.
The steps she is taking are quite big, considering the dress she is wearing and because she is walking so slow I imagine her as being a giant and I can't help but think the upper body is too static. I would speed up the walk and give her a little more upper body movement.
Is she wearing a corset? If so, then the posture is very different from a normal walk 🙂