Let's just pretend the thing in that drawing was never meant to be an Einherjar exo-suit. It's way too tall and I don'e like the design much anyway. Let's say it's some kind of small walker. Anything the pilot sits in is considered a walker. The mechs in Avatar and the Matrix would both be considered very small walkers.
As I said, the Einherjar power armor exo-suits are like the armor worn by space marines in StarCraft or Warhammer 40k. I'm thinking definitely closer to the Terminator suit in size, not the Dreadnaught or Dreadknight. The wearer's legs go directly in the leg parts, their arms inside the arm parts. The Einherjar suits are capable of operating inside starship corridors. They are only about 8-10 feet tall.
This link may not have an accurate comparison of heights (let alone if it is real) but this has a chart that shows average human height compared with 9-10 ft tall skeletons
I used it as a reference for the stuff for my own story just to know how tall something is like an armor or other species. Anyways, is there a Blazer suit that has non-human anatomy design like for example, Blazer suits designed for Slashrim and Achmer?