Hi!
I got a question from a viewer how he could make a realistic weathering of an already assembled building from plastic kit. It should be super quick, very easy and NO airbrush or "advanced" artist stuff.. So I made a tutorial... https://youtu.be/h0xQB2J2HKg (https://youtu.be/h0xQB2J2HKg)
HereĀ“s the result, only using white and black water color + water + soap. 5 minutes.. Fully removable if not happy..
Nicely done! I have used weathering powders for years. Your idea is surely cheaper ;D and looks just as good if not better.