When I looked at the work of Edward Weston and Imogen Cunningham I felt that although the monochrome was purely because of its time it also helped to draw your attention to the texture and shapes rather than the object itself.
I am usually always drawn to monochrome images but I was surprised to find I like many of my images in colour. The selection below however does demonstrate examples where the monochrome works to focus your attention to the details of texture and form. It is most noticeable in the first image of the shell where without colour to dilute the image the focus now seems to be the frilled shape and pointed shadows. And for some peculiar reason the second shell amuses me as it looks almost like a mouth without its false teeth!
A selection in monochrome to ponder: