Painting of Wild Horses

UPDATE: video clip depicting the INSPIRATION for the sky with Storm clouds!

There is a "creative process"  Milkyy Media is working on the painting of Wild Horses galloping around the desert.  It's a work-in-progress - looks like this so far... 

Historic Painting to be Restored by MilkyyMedia Syndicate

The painting in question is hanging on the wall behind the people in this photo

So the painting was being examined carefully.  It had been hanging on a wall for decades.  Here are old photographs of it hanging in the Tasciotti home in the 1970s 

Then for about 20 years it was in storage, forgotten.  Recently it was re-discovered by Milkyy Media (through Ahgamen). As part of developing the artistry for Milkyy movies, we've been exploring all of the archives.

FACTS: This painting has no signature, but it could have been removed.  It was purchased by bidding at an auction in Dutchess County of New York.  When we look closely at the scene in the painting, there is a SWAN on the leftside.  Do you see the swan?

No painter would include a swan in the scene, floating on the small lake, yet cut off the view of it!  Therefore the painting on the canvas is partially folded over and not seen completely.  It must have been forced into a smaller frame.

Look carefully at the back of painting.  It has the imprint of where the frame used to be.  But look at how the canvas was nailed into the fancy outer frame.  Look at how there is no frame and the edges of the canvas looks like it had been cut.

It is possible (theoretically) that the painting was originally larger.  For some strange reason, it was "cropped" down to fit into the present frame it is within. 

What can we do?  Another question is this: what HISTORICAL PERIOD is this depicting?  What YEAR is it?  Who are the people that are showcased?  General guess it that they are European, aristocratic type. 

Can anybody help with information?  Who's the expert on these matters?! Please help us so we can fix this mysterious painting.