I can't really add much more than Janet and Mike have already said. My points would be; lack of light on the stamen, maybe a slightly tighter crop, there seems to be a light source from the left, which could perhaps be eradicated in PS. Sometimes a crop and change of angle makes a more appealing image than "straight on". I often shoot my flowers in total darkness lit only by 150 watt halogen lamp, shooting with autowhite balance and then alter to incandescent in NX2.
On a seperate note; hope the forecast remains good for Saturdays trip to Sclaebar