Has anyone done this, or a variation on a carving? I am doing a family crest in mahogany, and I am finishing with shellac for that old authentic look

(it sounded like a good idea at the time) I am using the premixed shellac, and it's ok, but I would like it to be just a little it to be a little better than it is turning out. So I thought I would do a varied version of french polishing by going over the top of what I have done with some pumice, and shellac and alcohol. I know it is normally a great fininsh for a flat surface, but would it mess up a carved finish, or be no better than what I have. I know you might say to try it on a test piece, but I really dont want to buy all that stuff just to find out it wont work. thanks Pat