Terry- I must say that is impressive rust work and the slimy moss is a great touch. 
Richard- The sub looks great . I also agree with the griminess. Even our US subs were often referred to as "pig boats" because of the dirt and smell . One thing I've always noticed , in combat situations cleanliness took a back seat to operational.
Have had a hard time finding my modeling Zen so far this year , seems things keep getting in the way. I do keep track of goings on and my hats off to everyone on some fine work.
I have been making progress on my Lightning and currently begining to lay on the paint. Here's some pics.
First up , some nice and grubby wheel wells. I imaginr they got pretty filthy with the crude conditions at Henderson field or just about any of the other island airstrips in the South Pacific.
Weathering done with a sludge wash of red,blue, green, yellow, and black acrylic craft paint . Makes for a very dirty looking sort of black brown with a hint of grimy maroon. Followed by a dusting of various earth and sand tone pastels and pigments.
It's hard to tell from this pic, but I 'faded' the cockpit coming with some light olive and brown pastels after a wash with the same colors.
After a prewash of flat black, she's ready for paint .
These next pics show the effect I'm going for on the panel lines . Have a couple practice boards with various pastels, washes and paint mixes to get a handle on how the different colors influence the base OD/neutral gray.
I like to weather in layers for more depth. Dirt and wear usually don't happen all at once , but over time and replicating the faded finish seen in these pics will be a real challenge
BTW Doogs - I may still do Miss Virginia , but more than likely the kit Oriole markings will be my time saver and still be a Guadalcanal bird. As long as it's got some meatballs pasted on the nose .
Howard