This might depict either Arrow, or his Nisson comrade, but probably shows the artist. Again, since it does not appear elsewhere, the beautifully-marked buckskin pinto is probably a borrowed mount, possibly explaining the absence of Arrow's distinctive feather tied to the tail. The complex, "kingfisher" face paint design is identical to that worn by Arrow in Plate 76.
Double pendants of blue silk ribbon accent these brass armbands. This detail is repeated in Plate 94, where Arrow is certainly representing himself. Similar pendants, in different colors, are shown in Plates 88 (red), 148 & 160 (green). Each of these is clearly a self-portrait, and no other figure in the ledger wears similar accents on his armbands.
The breechcloth is similar to that shown in Plates 86, 94, 102, 120 & 130; but if it is the same, two of the silk ribbons have been cropped at the selvedge line.
The green-striped shirt was worn by Arrow's Nisson comrade in Plate 104; and the distinctive, short-brimmed hat is similar to the comrade's as well---compare Plates 90, 100, 134 & 136---but is painted differently. The evidence, then, is that either man might be the one portrayed here; with the odds slightly in Arrow's favor.
This distinctive pair of fully-beaded moccasins, and painted-leather leggings appear only here. The yarn sash, and Chimayo saddle cloth are also unique in this collection. Note that a round, brass sleigh bell is tied under the horse's jaw.
The Cheyenne is armed with a Remington rolling-block carbine---compare Plate 5. The manner in which he is reclining along the off side of his mount is a measure of his brilliant riding skills. In 1883, Hubert E. Collins rode with Southern Cheyennes who were killing cattle. This is his eye-witness description:
"The Indian rider raced up alongside. Silent as death he would reach the proper position and fire. They always tried for a shot in the lungs, as the forefoot on one side was brought forward exposing those vitals, or they tried to reach the heart by the same maneuver" (Collins, 1928: 184).