How do the edges of the petal look, especially the bottom ones? There was actually another Orchid behind the one you are seeing, so I had to clone it out. Also had to use the clone tool to fill in two small dents in the upper left and right petal. Bucket tool used to make the background a pure black. Oh, and I cloned out the branch that's actually holding the orchid, so now, it looks like it's floating.
Camera used: Nikon D70s
Shutter speed: 1
Aperture: f16
ISO: 200
Lens: AF Micro Nikor 105mm 1:2.8
Software used: UFRaw, Gimp 2.6