The doctor sees himself in a mirror and appears disappointed with his appearance. In Destiny of the Daleks Romana changed her appearance several times after regeneration.
At the opening when the Doctor (Tom Baker) is regenerating he is wearing boots. After Peter Davison as the Doctor gets up, he is wearing shoes (footwear does not regenerate). In addition, his hair color changes from brown to blonde in a couple of minutes (but could possibly be attributed to the completion of the regeneration).