I had the idea to start an animation with several sessions spaced a week maximun but time is really blocked in France!
In the end I only have two images, one on November 19, 2017and the other on December 27, 2017. This may seem short as time limit but I was surprised to see changes of light in the nebula.
Cloud's of dust near the star cast shadows out into the nebula, and as they move the illumination changes, giving rise to the variations of light of the nebula.
and other decorative adjustment
and the comparison:
and to finish, the animation :