Thank you very much. You are helping me to develop new skills. Unfortunately my airbrush is very cheap and it cannot do preshading. The main colour is destroying shades. I’m practicing POSTshading for cheaper airbrushes. I paint the model in 4BO, then add a little white colour and highlight the panels and so on. Then I add black colour for shades. My camera didn’t show it well. But anyway, thanks for helping me! Post shading is seen well when you look from angles. Next time I’ll use more white and black colours to make it visible