B and w images are v diff to colour I feel. More about textures, tones, subtleparts of an image. For me the water drop stands out and the lines on the leaves. For me it works well.
@angelar this hosta does have some sort of splotches on the leaves that you can see faintly in the coloured photo but that really pop out and become more noticeable in the B&W conversion. It almost looks like I have added some sort of grunge splotches to this photo, but i haven't.
the one in the B&W above is a big hosta with rather tough leaves and less popular with the snails than the smaller hostas with more tender leaves.