Here is some Improvement Ideas.
It could come seasons like. ex. Spring, Summer, Winter etc. And it would become snowy in Whiterun at the winter. Or the snow would go away in winterhold.
You could find children at the street (or orphanage) you could give 500 Septims to the child for adoption. When you have given the child it you can change the children's clothes, name and hair. You could also give the child septims and food.
Make your own house
You could find a flat place ex. a 20x50 place where you could order some people to make you a house.
You can craft arrows (including Nord Hero Arrows)