Personality features of Second Caliph Hazrat Umar Farooq (R.A). Reference is obtained from the book Tareekh ul Khulafa  by Imam Souyouti. Personality Features of Hazrat Abu Bakr R.A can be found on another post

Hazrat Sayyiduna Umar R.A was a very simple and brave person but at the same time strict follower of Islamic teachings. He was well build and so brave that non believers remained afraid of him during his entire life. He was truly one of the great Muslim leader and Caliph.