I liked the shading you did in this and the oil panting style was a good touch.
I think you could potentially improve by adding some more details to your drawings, like for example her boots, her hair, what's going on outside the window, etc.
I also realize it's very complicated to do people's faces sometimes so it's understandable that her face doesn't match 100% her real life counterpart, maybe working a bit more on her eyes, cheeks and cheek lines would help.