Hey great line pose and line quality!but this time,for me personally, the expressions feels a bit off. I agree withshe does look like an old womanthe facial expression actually reminds me of the sloth, Flash. I think its to do with the mouth and eyes..These are some corrections I feel would help.I took a look at the pic you used as reference, and what I feel is the line of your eyes aren't parallel to the line of the nose, so that's the parallel line im trying to show in the pic.I also think the mouth should be a bit wider and you should avoid drawing the lower lip. also the line between the eyelid and the eyelash should be shorter (sorry for the crooked lines, My tablet isn't working so had to draw with a mouse)Just some suggestions from my part. Hope they're helpful