it is looking better. It's so weird how it got half the scales like that...could it have been a bite wound?
anyway, i wouldn't worry unless you see swelling, and the dent with a scab is looking good to me, for being a wound of course.
and you are right about the scent gland being close to the vent, i don't think it's that either, now. thank you for the pics showing how far along the tail it is. I hope she heals fast...looks like she is, but faster can always help!