Yes, looks like they've been air-brushed, I once before saw a Gundam custom, but it was done in matt brick colour, it actually looked even better than that one. Another 'job to do' is to get the old air-brush going and start churning out these customs I have in mind. First on the list is still the PlaRail Advance Nankai Rapi:t Star Wars - I've got the images, got the gear to produce the transfers, just as usual time. Super - sort my boss out, pretty please
Happily collecting things all my life...