Most of the bg images are spot on, especially in JBF. Its just the bg though and certain items. Can you draw a bike perfectly? I know I can't.
I would reference poses all the time if I had access. Also, if you gave me a piece of pape, a pencil, and a photo..I could almost copy it perfectly to scale with some time.
I'm. Not saying she is completely innocent...but there are other alternatives.
And Idc if she traced Magnet, it blossomed into a beautiful idea and song...all she did was use a 'base' <--mind you I'm using that term loosely