Initial statement

For my project i want to go for a viking/nordic theme. I am interested in the architecture of this theme. i will use textures such as wood,stone,grass and steel. For lighting i want to use natural and ambient light such as sunlight and natural fire light effects. for atmosphere i want to use mist/fog but i really want to use an Aurora Borealis effect. one last thing i want to mention the use of landscape such as fjords and hilly/mountainous regions.

Rust

Here are some rust textures i made in photoshop.

In this image i used the Linear Light mode in the layers panel. it gives it a more red hue. 

For this image i used the Hard Light mode to give this a more faded look.

I used the colour dodge mode to give this image a dull look with patches red and orange.

I didn't use any modes for this but i did mess up with the layers.

The fire was made using clouds and difference clouds multiple times. next i used gradient map to add colour to the clouds then i used twirl and liquefy to add the whirling effect. Finally i used brightness/contrast to darken it.