The next layer was recoat of the Vallejo black grey (70862) with a ratio of 4:1 (paint/thnner). I used an american painter size 0 brush.
The next layer is a mix of black grey and london grey (836) with a ratio of 2:1:1:1 (black grey:london grey:thinner:vallejo glaze medium). The mix was applied using an american painter brush (size 0)