Morane question

The MS.570 was a two seat derivative of the MS.560 single seater and
AFAIK built in just one example. Most photos show it very similar to the
later 3-/4-seater MS.571, in the form shown in the lower photo. But if
my eyes don’t fool me, the photo on http://www.aviafrance.com/
shows it with another canopy, smaller, lower and less framed, with another
prop spinner and a different rudder. But as this photo is quite blurred,
I’m not absolutely shure. I’ve tried to outline the differences in the
sketch below.
Anybody, who knows of a modification of this aircraft ? The earlier Ms.563
was modified for a record attempt, maybe here it was for a similar reason ?
Or is it just a deception ?