Made with Blender 2.64, and lovingly rendered with Blender Internal
1920 X 1080
For those who are curious, I used a very flat black finish here with Diffuse Intensity at 1, and .20 on the Specularity with 20 for Hardness. I used two point lights, one close to the object, and one further away from it. Light specs are 12 samples for the shadows, and 10 samples for the softness. Energy of 1.2, and the lights were strategically placed so the flower would blend into the darkness.
Background sky is totally black, and I didn't use any Ambient Occlusion or any other atmospheric lighting.
The object itself is subdivided at a level of three, which made it a rather heavy mesh, but turned out nice and smooth.
Blender Internal render of course. EDIT: Updated with my original design. Same settings as above for the green.
Thanks for checking it out!