

Is this my fault?
First pic is pre-rinse, second pic is post-rinse.
This is my second time getting a spray tan. The first technician seemed really knowledgeable and the second one seemed like she was new. My first spray tan was amazing, no notes.
This second time, I noticed the technician didn't get parts of my bikini line or under my butt, which doesn't really bother me since those areas won't be on display at the moment. The part that is bothering me is my back vs front and the underarm vs arm area.
There looks like there is a straight line between my back and my torso, which did not happen last time. Also, my underarm and shoulder seem to be darker than my arm.
I exfoliated, hydrated, lotioned, took a cab back home to not sweat. I also reached out to the location and they told me it told rinse out, which it obviously hasn't.
Is this on me or the technician?