dear seems some misunderstanding, lighter colours like silver difficult to get depthness but continues use of glazes, pure polishes , natural waxes u can get depthness in paint
natural waxes having yellow carnuaba start giving yellowesh ness if u repeat coats more than 2 to 3 times in very short time however bit expencive pure natural waxes comes in ivory , off white type colours will not give u this yelloiesh ness problem , try poorboy natty wax ( not blue one as blue is for dark colours ) price wise economical with very good outcomes , in usa its about us$22 without shipping charges
well i personaly like reflections in lighter colours instead of depth 