This figure interesting it is possible.
For a long time I look, and it is a lot of questions for authors.
Forgive my opinion, but I support Guy - " Napoleon a British general " - this figure has no history.
Also the anatomy and a sculpture - low and narrow shoulders, wide feathers of an eagle, rough bunches{beams} hair "coup" suffers..........
Much looked variants for " Blackfoot Warrior ", for " Lakota Chief " Rain in the Face " ", - there are no acknowledgement{confirmations} of a history of a thing.
Also I do not see exact reproduction painting.
Probably the author of a sculpture and the author of painting have acknowledgement{confirmation} of all elements of clothes and an accessory{a belonging}???
Forgive my opinion, but I see only "Indian" (Napoleon a British general), and it is a lot of mistake.
Yours faithfully.
P.S. Who is a figure?