"Tents' Protest" - the process of illustration

I wanted to share here my process of illustrating an article for children's magazine "Einayim".
My experience in an illustration area isn't very large, every time I work on illustration I feel like I'm inventing myself again and again.
The article was about so called “social justice revolution”, which happened in Israel during the last summer.
My first references for the illustration was some sketches I drew earlier at the "tent city" at Rothschild:

I also found some photographs

I did the pencil sketch and started to work on final illustration, trying to keep the spirit of spontaneous sketches

I liked it during the process, but at the end... the spontaneous feeling is disappeared. Maybe I should stop earlier ;-)

final illustration in the magazine - click on it for a bigger size!

I would love hear about your process! What are your references, steps, techniques, feelings and etc.