Thanks Monty, glad you like it
@Joris, at last, someone with taste and humor

Thanks man
@zisis, thanks you for the kind words, I used the tip of a "sate stick", don't know the exact word, but those little wooden picky thingies...
but I also used a needle, an older stiffer brush (those cheap one's where you get 2 usables and the rest is only good for 4 year olds, I used the latter

(no need in making things difficult hé

)
also used are a finger (can(t remember witch one, lol, but I guess you'll need some kind of nail on your finger

)
a stiff piece of plastic stick (some streched sprue works 2 )
anything thats not too hard can be used, the big trick is a drop of water on a spot where you want the scraches, then wait (this can go verrry quick, or takes a min or so,depending on how thick the top layer is.
As for colours, I use Revell Aqua paints, little demin water, some car window liquid (or I sometimes use a defuser for acryl paints (acts the same I guess)
After the primer coat, I sprayed BEIGE as base colour (you can varie that with addition of some darker brown, or more red /orange tints) then depending on end result wanted, I give it a verry faint wash with oil paints, burned sienna (among other brown tints)
then after drying a night,( in my case 10 minutes with the hairdryer

)
you put on a coat of hairspray, depending on how big the scratches and chips have to be, bigger ones more hairspray, ect
then , spray on (in my case green) last coat,
then you have the choice, either start directly, being carefull with the water and scratching, or you leave it for some time (again I am a patient man (NOT) so I use the hairdryer again

)
and then you start picking and scratching,
BEWARE of overkill, take a pictures inbetween scratchin, on a pc , you sometims see better the scale effect, I mean, it's easy to go overboard, looks the sh*t, but at the end it isn't that realistic having a vehicle that is 2 years old and looks like the wrecks they dig up in Estonia in 2009.
After that is all done , give it a wash with a darker brownish colour, whatever looks good to you, and to have that extra add some little scratches in a light yellow green colour, place them where the scratch would have "begun", this gives more depth in your scratch, on metal you could also add some rust colour oil , just a little little point of oil pait, then take a dry flat brush and gently stroke down.
so, I'm currentlu workin on a cover for the truck, but that's easier said then done
should have done that when it was still unpainted, but I'll get around that
and the hay will be changed for a "finer" version.
well hope you understand my mambo

greetz