That is really nice, Jiro. I am going to try that later

Part of the problem might be that I am using a mirror which really has no texture. I will try a textured white background along with the black one.
In the meantime, here is the photo out of LR with just an output sharpening. The background had colour but no texture.
Does the orange stand out better against the peels now, or should I use a lower f-number. I also took shots at f/2.5 and f/5. I chose this one as there is a subtle focus blur on the two peels on the inside, and the entire orange is more or less in focus. At lower f-numbers part of the orange starts getting OOF.