Beautiful work Benoit. The anatomy and pose are great and the face is excellent (shame the ears got covered eventually because they're very good too!) I like the way the blanket is sculpted too. Good work on the feathers too; I'd probably substitute foil for thinness but their texture looks very nicely done.
One minor historical point, Native American bows would generally be quite a bit less robust than this, tending to be of the 'flat bow' type and toward the knocks they would really be quite flat. What you've depicted looks more like a European longbow.
Einion