Another old viking

Another old viking. I am stuck in drawing old men, what would Freud say?
The ring on the arm is based on a find from Gotland, it seems stupid to wear it over the clothes, but I wanted it in the picture. The figures on the shield are on man, one valkyrie and Sleipnir. My versions but had imagestones from Gotland in mind. The triskele is also common on those stones. He should be more wrinkly but it was too hot here to dive into details