Hello! With my metallic painting a small stone stroke was repaired with a paint pencil by a paintr. This meant it could not be better. The result is ok for me too. However, it seems to me as if the clear varnish is missing and the layer stands out. Therefore I would like to put on my own hand. I would first assume to have to sand down the paint hill and then clear varnish on it. Then polish. Right? Bzw. what means do I take there? Thanks!