Updated the textures of the tank:



I lowered the reflectivity of the paint, added rust, leaking and discoloration.

The modulations of the textures were made with project painting in blender, maybe I'll write a mini-tutorial to say how I did it.

In addition, the tracks were darkened considerably, making the overall more homogeneous.

Now begins the post processing stage.

It's almost finished.

Here's the result of the textures work:



I'm not so convinced about the texture of the wall and of the tank (it's too plain), and on the oil slick.

Things to do: dof, post process with the nodes, add some detail.

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Thanks again for the compliment :)

@pbrad: yep, you're right, I used a physically correct render :) My setup is similar to what you can found in the file "Studio render of Nissan Pathfinder", here:
http://www.yafaray.org/download/examples
So thanks to the Emirage for the fantastic set-up.

The environment is finished, here's a clay render:






I took inspiration from one of the last tutorial of Andrew Price (here http://www.blenderguru.com/how-to-create-realistic-outdoor-lighting/) adding a bit of details, and a hdri to to improve the reflections.

It seems over exposed, but adding the texture should fix it.

And here the wireframe as promised:



The barrels and the shutters were first modeled perfectly straight, and then twisted and ruined using lactice.

I also uv-unwrap all the models that I need:



The next step is the material/texture!

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I started this project for a little contest with my friends, where the theme was "tanks". I immediately thought of the famous and fantastic "partner" of all the matches I have done playing Metal Slug, and I started work immediately.
I was inspired by these images:






The result it's this:







I also made ​​a turnaround to show all the details (watch it in HD)





Now come the wire render of the tank:





Now, to make a wire rendering it is easier than I thought: first of all you have to give your object a wire material, activating the Z-transparency and setting the z-offset value around 0.02 to 0.03, as in the image:



At this point in the same object, add a second material (which will be the base color) and assign it to the entire object in edit-mode. And that's it all!

Rendering the scene, and you will have a beautiful wire render:



The next step is the environment.

I hope you like it! Stay tuned.

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