I believe,they are all Deflexed tiped bows.I believe the Bow in Pic 5 is strung improperly.It was not uncommon to see Decoration,on the Belly of bows as the bow in pic 2.The predominate bow style from the far north in the Canadian Plains,all through the Midwest,on down through the southwest,was the Double curve Bow.It is Properly,a Reflex/Deflex bow.The term D/R is used improperly,for the Popular style most associated,with modern glass bows today.It is Properly a Deflex/Reflex Bow,but most seem to use the term interchangably nowdays,and i feel that it leads to the confusion.I have Nevwer seen an old pic of a plains Native,or any native throughout the region,where the style was popular,with the bow braced in the D/R posistion.I have only seen that happen in Museums,where Curators are not knowledgable about Native archery,or any archery for that Matter.Trust me though,When i say,that it does a person,NO GOOD,to try and explain or educate those people on their mistakes.They dont accept,Nor appreciate this type of help,unless their is a PHD attached to your Name.I actually had this told to me,in the Past.A Bow in the State Museum here in Carson City,is Braced backwards and has been that way,for many years,even though i tried to explain to them,the how and why of the design and why the sinew was designed to be on the Back of the Bow,not the belly.