Hi there. This is my first tutorial in which I'll show you how to get something of great quality from a small picture.
I can only work out simple pictures, like textures from games but if you're a pro then you'll be able to do complex scenes.
By the way, you need to know the basics of Paint.NET.
You don't need to download a single plugin!
I'll take a REALLY small texture from Half-Life 1. It's 64x32 and... Not difficult to rescale at all.
Well, first of all, let's rescale the picture with Image -> Resize. Maintaining the aspect ratio, set Width to 1280. Height should automatically be set to 640. Now that you've got a bigger picture, the interesting part starts.
We should find a proper material to fit the material. For this one, it's rusty metal that was painted green, so the textures we should find are Metal and Rusty Metal. (Hint: use Google).
I use these two as they fit perfectly:
Now, create a layer above the Background and paste the first texture in it. Name the layers whatever you want. When pasting, keep the canvas size - you'd want to resize it later. Set the opacity to around 150 so we can see the original. We need it yet to arrange our textures.
Do the same thing with the Rust texture. When you are done, set the Metal layer's opacity to full and the Rust layer's Blending mode to overlay.
Ready to paint? Grab the Filler and fill the whole thing with #B3C130 on a new layer. Set this layer's Blending mode to Overlay. Yeah, we're going to use this one a lot.
After that, play around with the Brightness/Contrast (Ctrl+Shift+T in 4.0+ or Ctrl+Shift+C in earlier versions) of the Metal layer.
Now, make the text. Use a new layer again. The font for this one is Arial 144 pt.
To make it more noticeable, duplicate the layer and Blurs -> Gaussian Blur it with a factor of 25. Duplicate the blurred layer, merge the blurred twins together, set the Blending mode to Color Burn and the opacity to 165. Put it under the text layer.
Now, let's do the borders. Make a white rectangle on a new layer, fill the blank space with black and blur it as you did before. Set the Blending mode to Overlay.
Not enough yet. Set the secondary colour to transparent, choose Gradient and do 4 linear gradients for the dark areas (on a new layer). You should get something like this.
To make a hard border, create a new layer and make a white rectangle with brush size set to 35. Then pick up Eraser and set its hardness to 0. Erase the inner bounds but leave the outer ones. Set the layer's Blending mode to Overlay with 120% opacity. But then you'll have to remove the first white rectangle and adjust the gradients.
After all, apply Distort -> Dents to the text. Use these settings (to make the distortion really subtle).
This is it. You can see the full-size result here: http://i60.tinypic.com/bi313q.png
And the PDN file is here: http://www83.zippyshare.com/v/rRkz1Gso/file.html
Be fair and give me credits if you ever use it somewhere. Good luck.