Answer:
Milliet and Van Gogh became friends in Arles.
Explanation:
The Zouaves were a group of light infantery in the French army. Milliet was in Arles to recover from an illness he contracted in French Indochina (Vietnam). The Dutch artist and the French lieutenant became friends and Vincent van Gogh painted a dazzling portrait of the future lieutenant-colonel with the distintictive red hat of the Zouaves. The painting can be seen in the Kröller Müller museum in the Netherlands.
The difference is when you draw by memory you won't remember every tiny detail, and you make/draw it in your own way vs. having the object in front of you you can copy it almost exactly.
