A pearl finish is not a colour, it is a direction - and that is what makes it difficult on a piece this size.
An ordinary white reflects light more or less evenly however it is applied. A pearl finish carries fine particles that lie flat as the material is laid off, and they lie in the direction the last stroke travelled. Which means the finish reflects differently depending on which way it was worked. Cross two strokes and you can see the crossing from an angle for the rest of the wardrobe's life, as a faint haze in the shape of the overlap.
So our master Indian artisans finish each panel in one continuous pass, laid off in a single direction along its length, and then leave it alone. There is no going back to touch up a thin spot, because a touch-up is a stroke in a different direction at a different time and it will show.
On a wardrobe with twelve door panels, that means twelve passes that have to be right first time, plus the rails and stiles between them - each laid off the same way so the whole front agrees when you look along it.
The lustre you see from the side is the record of that discipline.