20.5 if you are 4’6”. That one arm looks to be 25” and the other 18”. What’s the deal with that photo? Shopped or synthol? Or is it just the mirror? Not an attack either just looks very odd and enormous.
You are right, the left side does look odd. Didnt pay attention as it wasnt my main focus ( pun intended )
The mirror is fragmented and Im standing 3/4. This fucks up the left side
The( older) camera lense doesnt help. The short focal distance likely created a barrel like distortion, shrinking anything that was not centered with the lense

Not trying to justify anything, I understand why it looks fishy to you. I fucked up.