Here are the faces of people with Aries ascendant and their decans. Pictures speak more than thousand words.
Aries decan 1 rising, from 0 degree Aries to 10 degrees Aries
Aries decan 2 rising, from 10 Aries to 20 Aries
Aries decan 3, from 20 Aries to 30 Aries