Hello, I'm afraid I've been too impatient.... I have already started and thought up my own series of pictures on the theme of mother-son. I have already come quite far, about 20 pictures are ready. There will probably follow about 10 more. I will post the series then soon also.
The probability that the pictures fit to your story is quite low, but maybe there are overlaps. Anyway, feel free to email me your story and I'll take a look at it. I send my mail address by private mail.
Here attached a small sample of the upcoming series.