Badly misaligned the lady on the left's eyes, so now she looks even more criminal...
There's more than one use for rulers.
Nowadays I mostly manage to get the alignment right (well, more or less, anyway), and for such very quick sketches I forgive myself any and all errors if I can manage to more or less capture a likeness. It wasn't always like that. Years ago I had a mighty struggle with aligning eyes. After battling it out for literally hours with a portrait, I decided to sacrifice it to the learning process: I took a ruler and drew a hard, solid, absolutely inerasable line where the eyes should be. Then used it as guide. Only to find that I had misaligned them
again, by somehow managing not to stay on the hard guideline. I gave up on art altogether then, but of course, I couldn't stay away from it for long.
I have since made my peace with my inability to accurately copy anything. If I couldn't learn how to do it in thirty years, I don't think any magical method or technique is now going to make a difference. I have discovered how to capture a recognizable likeness without getting the proportions and everything right. That's the funny thing, actually: in the past, my attempts at portraiture were more accurate to the reference photo, but seldom actually looked much like the person in them. Now I can quite reliably capture a recognizable likeness, even when I manage to distort the face quite a bit in my haste.
It is something that has always interested me: what is it that makes a portrait likeness a likeness? It isn't accuracy, or caricatures would be unrecognizable (when in fact, they can actually be more readily recognizable than a photograph). I have now cracked the secret, I think, except I cannot think of any way in which to verbalize it. I know what to look for when drawing a portrait, but I can't tell you what it is.