It feels so spiteful to put so much effort into proving that someone is tracing... HOWEVER, i hate people lying and i've seen enough filters and level adjustments to tell that this is a trace. There are a few parts that are out (like the leg) but that could be a purposeful mistake to keep people guessing. The torso, patterns on the boots, guitar, thumb and face are a perfect match - even the best artists would have trouble with that.
Ive overlayed the colour one with the black and white version she has posted and set the opacities down so you can see how well they match up.