I have a headsculpt I bought in China that has two minor scratches that have damaged the painting work in the hair area. I have repainted those small areas with acrylic paint and I would like to apply to the head some spray varnish to protect all the paint of the head, ( being it so prone to be damaged). Which brand would you recommend, Vallejo Acrylics…? And as i want to apply it to the face too, would it have to be mat or semi-gloss/satin varnish? I guess the eyes must be full gloss, isn´t it?