This has a lot of little things that make it likeable. The sunburst effect of the two drops, the alignment of the flowers, the nice bokeh. But in the end the overall presentation is lacking. I don't know what to tell you.
Nice simple background and good capture of the rain drops. It doesn't shout out to me though. I've seen this type of shot so many times on DPC. I understand the temptation---I've taken this type of shot too. It's a classic. But something has to be remarkable in terms of composition for me to want to linger. I think my problem with this shot is the monochromatic color scheme. Sometimes this works for me, usually when the color is fairly rich and saturated. In this case, it just seems bland.