What's the error?

It really should be mandatory that if you're adding the error tag you must in the comments point out the error, no matter how obvious it is (unless the error itself is pointed out by the image).

I'm gonna guess.

Take a look at how her finger points to her hair for front view, then look at her finger in the mirror version.

the whole perspective in the mirror is wrong, since it's at about 45 degrees you should be seeing her side, not her back, in the mirror

to see her like she is in the mirror, it would have to be behind her and nearly parallel to the wall

almost nobody ever gets how mirrors work

I think pose figures would solve the problem a bit.