Tire is grey hu129 weathering with pastel and oil paint.
Machine gun are a little too big (?).
Painting with gun metal. When dry, grey blue "diluted" with airbrush.
The mantle is grey. Black and grey oil paint with a little sponge to make marks on the mantle.
The breech is black, dark grey. Edge (arris?) are rubed with 0.5mm Pencil graphite.
Every parts of are not put on the machine gun. It's very difficult to lign up mantle and breech. Mantle is glued first on the plane.
MG is too short (1mm), but it's too late.
A+