I really like this, beautifully drawn and completely twisted! Its very interesting, just my type of thing.
As for the other reviews I'd just like to point out that art does not need to be perfect nor does it need to 'fit' or make sense. It's all about the perception of the artist and after all it is your peice of work. Good job!
I think the juxtaposition of a childhood icon injecting drugs intravenously is just great. :) there's just a few issues of skill, such as the little ball hand on the arm being injected, and the hand holding the needle is a little funny. The size of the feet are a bit different too, but that's not a ruinous detail really.
Other than those small details, I think this is great. :) Keep up the good work.
I like the drawing itself, but a childhood icon being associated with an infamous drug, just doesn't fit.
The art itself is still great!