This is my contribution to the Ragnarok Logo Contest promoted by 
It's a picture art type logo?
It's just things I have found online that has inspired me based on Nordic themed art everywhere you look online.
I chose these images because each of them represents that Nordic theme of raping and pillaging countries with no thought for anything other than the glory of the Norse gods. Which to me signifies that warring and battle mentality.
I used Gimp to merge all of these images into one PNG file.
Sources of images used.
Dragon
Circle
Thor's Hammer