What happens to the ovule and the ovary after fertilization?

Explanation

Refer the above answer for labelling.
Process of fertilization in a flower :
Fertilization is a process of fusion of male gamete with the female gamete.
After reaching to stigma, pollen grains develops a pollen tube.
This pollen tube grows through the length of style, from where it reaches to ovule.
Pollen tube contain two male gametes, which is later on released in the embryo sac.
Here one male gamete fuses with the egg to form a diploid zygote and the other male gamete fuses with the polar nuclei to form a triploid nucleus which is developed into endosperm.
i] The ovule develops a tough coat and is gradually converted into a seed.
ii] The ovary grows rapidly and ripens to form a fruit