I have been trying to figure out which one of these cover models I look like but I can't seem to relate to any...

Maybe this is because none of them actually have perfect skin, hair, teeth, or bodies.  These girls have flaws too we just don't get the opportunity to see them.  Magazine publishers edit and tweak their images until they took "perfect".  Unfortunately, young girls like you and I see this as our goal look, yet it's unattainable.