In general, yes. But still I notice that there're bunch of tall women whose soles are not really "long". I mean it's actually about ratio of length and width.When there're too much weight on feet, it'll make the feet look different from the "bones"(which the shape they should be).It's easy to predict the shape of the foot as a whole like, for example, tall women tend to have longer soles and toes. But its really difficult to predict the shape of toes and nails exactly, it's really random.
But howI can. I bet I could draw them almost exactly by a face/ body pic. i believe you.