Primarily wears button up shirts; plain or with classy prints. They’ll be form fitting but not tight. If he’s not wearing a tie one or two buttons may be undone, enough to bare collar bones but not chest. Slacks but never jeans. Straight fit and with a belt. Vests, Jackets, long sleeved sweaters. Long coats, knee high preferred. Long flowy cloaks. Ridiculous rich boy shoes. No jewelry but might wear a large ring once in awhile. Likes dark colors. Maroon, forest green, navy.
Draco married Astoria because it seemed like the thing to do at the time. Their marriage has always been rocky and unpleasant. Astoria cheated and it was Draco that demanded the divorce, (though everyone believes she just flat out left him to run off with her lover and stuck him with the kid.)
Draco has absolutely no idea how to be a father. All he knows is that he doesn’t want to be like his. He is stern and a little distance, but is otherwise involved in his son’s life and makes the effort to do dad things.
In his last year of Hogwarts and the years after, Draco was forced to evaluate his life. Gone is the spoiled brat who demands everyone to cater to his whims. (Well okay, not totally. Draco likes things done just right and he will make a scene.) He keeps snide commentary to himself rather than lashing out. He holds a lot of bitterness about his childhood and his family. Including some dark feelings about his present life. He is cold on the surface and moody underneath.
He is quite capable at his job. He’s good with details and taking charge. People listen to him and respect him (with a healthy dose of fear).