what do you think he sees when he looks into the mirror?

I think that he would see himself standing next to a happy family. To me, I thought that Draco's problems all stemmed around the fact that his father was prejudice and his mother coddled him. If he had been brought up better, not only would be have been happier, but he would have been an overall better person.
Some people might say he would see himself "on top of the world" or "the most popular guy" since Draco was easily made jealous; especially when the spotlight wasnt on him, but sometimes you got to look underneath the underneath.(Kakashi quote lol)

I think he will see himself in harry's shoes, friends who like him not afraid of him, popular without even trying, powerful, have many respect from others,and have many unconditional love around him,,,I think he always want to be harry but he never gonna admit that,,I feel sorry for him sometime

Great question. It could be many things...

- as a Dramione fan, himself hugging Hermione.
- or more in canon, himself with his left forearm devoid of the Dark Mark.