Some more examples of Parallel in Art

Are all those paintings done with parallel lines?

Can you find any difference between them and the next paintings?
Are these parallel lines?
WHY there aren´t exact parallel lines?
WHICH sensations do they provide you?
WHO has painted them?

Piet Mondrian and parallel lines, parallel lines and Mondrian.

Here you have some pictures from Piet Mondrian.

What do ALL those paintings have in common?
Can you find the only one that he didn´t paint?
Why do you think he didn´t paint it?

Do you like this style? Why?
Do those pictures give you any new ideas?