Wow, nice work! I'm not nearly brave enough or good enough at drawing to do that, but looks pretty cool.
Have that painting in my room. That looks awesome. I'm jealous.
I'm jealous that you have that painting in your room. What'd that set ya back?
OP - I'd let you draw that **** on my iPhone any day.
It doesn't leave any scratches, pencil and colored pencil are way softer than aluminum.