Here, hold, entertain
 

Mega puzzle - all summer:)

So this:

Painting, which I laboratory preparations specifically for you,

was written by one special, which

was in the service of a foreign genius (but he is not on our part).

who was friends with other foreign genius (the nationality of both geniuses were the same, but the nationality of their fathers - different)

Together they have become famous for some actions (to say the misconduct), which are described in detail in this forum.

I must say, the genius, who is our artist worked, took a great interest in art direction, which it represents, nevertheless, for a long time, she was forced to make the most unskilled jobs.

But in the end it was recognized, so that our stories happy end, as befits a normal history, designed for reading on vacation:)

All clear? Well, then to the workbench!

Perhaps a French painter - "naivistka" Serafin Louis, known as Serafin of Senlis. I found her, Wilhelm Uhde, the first buyer of Picasso, Braque. She worked as his maid, he also organized the first exhibition. As for happy end - do not know ... She died in a psychiatric hospital ... Yes, I too had all summer obsession - to find the answer to this riddle ...:)

And I folded up this mega-puzzle last year (one piece somewhere lost), but did not reach the hands of lay. Author never guessed.