Still Life 3

This is another in my Still Life series, which ties in nicely with this week's AYWMC lesson.  The homework is to look at tonal editing.  I am not at all sure that I have got to grips with this, but have enjoyed experimenting.  In the mono version I have tried to increase the dark areas while keeping the highlights on the various pieces of glass  I have included the colour version, which I have tried to do in the same way, as an extra.
P.s. Thanks to kind blippers I am also tagging this for nickimags new still life challenge.