Marvellous stuff; a delightful boquet of authentic Anglo-Saxon details, showing a great and detailed background in history.
The prose is solid and clear, easily followable and interesting. I especially like the mixing of Tolkien's details with the author's own; "Oromë and his shining steed Nahar, the slaying of Carcharoth, and Argeleb's pursuit of the Black Boar of Rhudaur". It's a good technique, and ties the story more closely to the source material.
I'm a little puzzled at one or two of the details--charred flesh smells pretty much like any other charred flesh, whether pork, beef, or human. It's the burning hair that produces the usual 'stink of burning flesh', along with our cultural preconceptions. Does a bow need to be curved? Simple bows often are straight sticks, but the belly of the bow will be curved (although I love the classic hair-bowstring piece).
Sometimes, the author gives us a pronoun before the name of the character referred to; I'm unsure if this is from style or not.
These are all minor details, however, and I bring themn upo because I have nothing else to pick at. Smooth prose, interesting storyline,