Subtext of "Imperfect Twins" (S P O I L E R S)

A quick mention on the DVD commentary gave me the idea of this motif. It's a little reminiscent of a similar one in "One-Eyed Jacks."

See if you can add any to this list:

1. One visible fish eye on Cross' and Jake's plates
2. Jake's one slit nostril (Nicholson prides his teardrop shaped nostrils)
3. Jake's one broken sunglass lens
4. One missing Florsheim shoe
5. One broken bifocal lens
6. Ida being Evelyn's flawed double
7. Evelyn's one eye with a flaw in the iris
8. Noah and Hollis are mirror-image partners, Noah being the twisted one
9. Claude and his flawed twin "midget" Polish hit-man
10. The "twin" cops: Loach the crooked, flawed twin of straight but realistic Escobar
11. Russ Yelburton being the flawed, pragmatic (if not crooked) professional twin of straight-arrow, caring Hollis
11. One broken taillight so Jake can follow Evelyn at night
12. Curly's wife with one black eye
13. Katherine as Evelyn's flawed twin, but with an open, vulnerable nature
14. Evelyn's one shot-out eye
15. How 'bout Curly as a flawed reflection of Jake? Both were wounded in love (Jake's back-story which he mentions to Evelyn in bed. She asks "Dead?" He doesn't answer.)
16. The dirty, earthy gardener, open, honest and hard-working, with broken English ("Bad for glass...") vs Khan's polished, erudite, inscrutable plotter
17. There was another one, but right now I just can't think of it! Maybe you will.
Edit 12/6/19: I think this was it: Evelyn as the soiled world-weary mom and Katherine, her virginal, naive, maybe even simple daughter.