On stairs and slopes, we move up or down while moving in some other direction too, so we FIND many natural diagonals in the world around us. Sometimes we have good reasons to MAKE diagonals when we compose images.
(BTW, the [Menu] button atop the vertical black bar reveals the widgets.)
Cee’s Fun Foto Challenge: Diagonal Line(s)
Sometimes we make diagonals when we compose photos and other images. (Googling “baroque diagonal” is informative.) The horizontal lintels of ancient Greek temples look stodgy:
Diagonals made by camera angles can rescue lintels from stodginess:
The soft vertical flutes of window curtains are so ordinary; we are likely to ignore the mundane miracle of sunlight seen thru closed curtains. Diagonals made by camera angles can rescue curtains from banality:
Mellow Curmudgeon 
Terrific examples of diagonal lines. 😀 😀
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Do you have a name for your fabulous curtain? Has Ken met it?? Stodginess. Cool word.
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Lovely last one. ❤
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