I have always disliked my nose and was wondering if it is ok to get it fixed. I am married and my husband does not mind. Also, how do you feel about breast enlargements as long as the husband is the only one that gets to see them?

Praise be to Allah, the Lord of the World; and may His blessings and peace be upon our Prophet Muhammad and upon all his Family and Companions.

Undergoing any operation only to have a good figure is not permissible since it is an act of changing the Creation of Allah, which is forbidden. Allah Reported about Satanic business in the Qur'an: {(Satan said…) and indeed I will order them to change the nature created by Allâh. …} [4: 119].
Also, it is an incontestable fact that Satan orders only evil and shamelessness.
However, if a woman personally feels the size of her breasts or any other organ, are seriously harmful to her health, it is permissible for her to undergo an operation to remove this harm.
In addition, it is also permissible for one to recover anybody part that is disfigured through an accident or disease. This act does not come under the ruling of changing Allah's Creation rather it is only to recover the original condition which is permissible.
Allah knows best.