Front derailleur:


The rear derailleur didn't come quite as clean as I was hoping, but it's magnitudes better. I didn't snap a pic yet.

So I'm on to the frame now and herein lies my next query...

I used the methods suggested to clean the chrome parts of the front fork of the rust spots, but now it seems to have left with just areas where the chrome is just gone. I'm assuming there really isn't anything to be done about this? The rust is gone, but the chrome has been damaged and it just is what it is now?

Front sides look ok:


It's the back sides I'm concerned about



Thoughts or recommendations?