The forward cheek formers were carefully aligned with a straight edge from a reference point marked on the fuselage.
The right cheek skin was then aligned with the forward former and a horizontal reference line drawn on the side of the fuselage. It was adjusted forward and aft to get the formed skin to match the perimeter of the cheek former and the fuselage skin. The cheek skin holes were match drilled to the fuselage skin and fastened with 3/32” clecos. Looks good.