This is the result of a "cheat" of sorts - used a filter from Virtual Photographer. I don't use those much, but I liked the results on this one. (It's the "reminiscing" filter, I think.) First did levels, and brightness/contrast adjustments. Applied the VP filter, duplicated the image, changed blending mode to multiply, then reduced that to about 75%.
I prefer the B&W version, and you did a good job on the conversion (doesn't matter how you did it!) The hint of color just seems to add another dimension to this.
I really like the tones, depth of field, and composition. Roses, for whatever reason, seem difficult to get good photos of. I don't know why that is since they are so beautiful. You have succeeded with this one...the water droplets add interest, and improve on an already very nice image.
The tones in this are rich and luscious. I think that the amount of negative space definitely adds to the composition, giving the rose room to "breathe". I actually like this version much better than the color one.