Weathering advice needed

[iambrb]

Ok so on the pics below, you can see accumulated dirt. My question is simple, how was this done?

 

[errains]

Here are some suggestions to get started....

And watch this video again...and agian...and them some more... :coolio
https://www.youtube.com/watch?v=oE_9XijaHP8&list=WL&index=5&t=11s

Keep us posted how this is going
:v

 

[moon puppy]

Very nice Eric,

 

[Skinny_Mike]

Some other places to help out are this book...

And Adam Wilder's great series of videos on you tube - https://www.youtube.com/watch?v=7IkBFWzwJ-s

 

[iambrb]

Kinda like this?

(Bear in mind I just started)

 

[Skinny_Mike]

I’d say it looks good. Kinda grungy.

 

[moon puppy]