Guys...
Thank you for the comments very kind. Hopefully heres the answer for the questions:
Debrito...When I repaint grey variants I always use brush instead of an airbrush. I get a better texture to the AFV and, I know you can use the modulation process with an airbrush but, I find I use my airbrush for the camo patterns on german AFV's and buildings only. I use Vallejo paints but, mostly I use Humbrol No79 grey for the colour adding a little white to get the right colour I think field grey was. I use different colour vallejo paints yellow red green blue etc and put small dots of these colours on the AFV and blend in with white spirit. I also use a blue for panzer grey wash from Mig which gives a nice touch to the flat grey. its either or of the above as each give a great effect.
Obee... I prefer (a personal preference) vallejo iraqi sand for highlighting the rivets panels etc but, I also use a lot of washes home made and bought again, all mig or vallejo or, a new variant AK interactive for higlights. I have seen your work so, not much wrong there or much I can help you with its always superb.
Sentaapua..
All the stuff I show is commissionm work and, its not at all expensive.
Guy...
Its a K&C WSS 103 variant so, under the banner of 1/30th
Mitch