To me it looks like what we call 'flooding' Its caused by the clear coat going on too wet and activating the metallic paint and then the flakes will float around.
Its easy to have this issue when using spray cans as the volume they spray out, even when trying to do light coats, is far more than an airbrush.
It can help to make sure your painting environment is warm and the paint and body are warm too so the paint flashes off as quick as possible and spray initial light coats of clear leaving plenty of drying time between them so there is less solvent build up.
I can't see how you could save that other than to sand and respray.