I don't think this will pass approval, i would remove paint and start over try free hand no stencil its actually better, TBH the decals looked much better and they had the painted on look for centurion approval, when painting the frown you need to paint only the space between the cutouts no above or below, the vocoder needs to be more defined in shape, check the movie photos as reference. Use Testors model paint thinner to remove paint, you will notice area will become a bit duller just use a soft cloth to buff shine right back DO NOT USE ACETONE! or any acetone base products like nail polish remover ect... this will instantly ruin ABS surface.