That bit of brown swirl on the left arm is beautiful in close.
Both front and rear legs' angles are right on in Chair #9. Note also the very evenly angled spindles.
The crooked appearance of the comb is an illusion. Of this set, #9 is my favorite.
The other seat style, quarter sawn grain lines.
Ah! There is a close up of the arm. Whaddya know? Sun behind a cloud.