Yeah I see what you mean, I used a frame of the comic as a reference, for context she is in a bathroom stall talking to someone in the next stall over, so I suppose part of her head might be blocked by the gray part of the door frame. That being said, my main focus was on the face, and staying true to the reference, so I didn't even notice that issue with the head until you mentioned it haha. Thank you!
Here is the reference I used: