Hi and a very warm welcome to the Scale models forum.
I would start by putting weathering into the search box and see what you get as it is probably one of the most frequently visited topics on the site. Start by looking through those threads for some ideas.
Richard posted a link to a superb site only a few days ago and I can't remember which thread it was in now but it referred to weathering and general building of a Tamiya 1/48th Spit and it was a very informative link. I am sure he will put it in this thread again when he reads this. |