I'm really concerned about why the botox seems like it's not working after the second time around? (photo)

Some deeper lines need a combination of Botox with fillers, lasers and microneedling/prp. I recommend getting a formal evaluation with a cosmetic dermatologist. Best, Dr. Emer

Neurotoxins like Botox work on dynamic wrinkles. If you have lines (the 11's) that are present at rest they will not disappear with Botox. Skin resurfacing or fillers are required.A new filler called Volbella works well for static wrinkles. 

Even though you only show one photo this seems pretty straightforward. You have lines that are present "at rest", ie without trying to furrow the brow. This can be deciphered by looking at the resting position of the inner eyebrow. These "11" lines are similar to a paper clip that is bent at the same position many times where it will thin just as your skin has. This is not a condition to be treated by Botox but  is a useful addition to a filler in the area which is required. Please see an experienced Board Certified plastic surgeon as this is a potential danger zone for complications.

If you're concerned, I would raise your doubts with your original practitioner. The Botox should have kicked in somewhat by now. It's possible that your lines require more than Botox alone. You may benefit from a combination of treatments including: PRP, Chemical Peels and fillers for optimal results. If the fault does in fact lie with your injector, the technique or the substance, there is no way to really identify this unless you visit another practitioner and compare the results. Always ensure that you visit a practitioner with plenty of experience in a clinic environment (the price will also be an indicator of the results; do not be lured in through discounts). 

There is a lot of nonsense that goes on out there.  You need to see a competent injector. This means working with an aesthetic core physician (dermatologist, plastic surgeon, facial plastic surgeon, or oculoplastic surgeon). Real service is often more expensive because you are not just paying for the product but also the time of an experienced physician or surgeon. Do not let well meaning individuals inject you with fillers in the 11 line areas.  This is a very vascular area and treatment here can cause blindness and stroke.