Our little mentoring group is going to be concentrating on B&W for the next couple of weeks. One week natural light and the next artificial light. Just having a play today. This begonia is in a pot in the garden and in colour there didn't seem to be much detail. Converted to B&W in Nik efex pro and I seem to have got a lot more detail out. I think the week with artificial light is going to be a challenge!!
Fun to see your monochrome play...and agree it is worth attempting a deeper DoF or maybe focus more toward the front. Inspiring me to get going on something.