Hi Lotus and welcome,
 
Very cool design on your earrings!  Are they quite old?  Thanks for the photo!  Recommend a silver polishing cloth, and take your time.  (Many jewelry stores sell them for approx $10.)  A bit of oxidization may remain where the wire is wrapped, but I think it will enhance the vintage look.  Please don't dip the whole earring in any liquid tarnish remover; that would likely damage the pearls, which have very nice luster.  Others may have suggestions, too.