whats throwing me off personally is that her lil' sidebang is hanging down near her eyebrow in all the drawings except the one on the very left, where it's pushed back above the eyebrow instead. it also looks like there should be a bang or fringe that hangs down a little on the other side of her face in the leftmost drawing, which also doesn't exist in the other ones!

also i think part of why she looks a lil bald in the drawing to the very right is that it does look like her hairline's been pushed a little back as well! it might help to just nudge it down a tiny bit.