This is a sketch I did of Classic Metal Sonic back in December, and I actually had the chance to show this one to Dawn Best as well last Saturday! I looked off of Metal Sonic's official Sonic Generations artwork (on the computer) while doing this. I sketched it, then darkened the lines with a charcoal pencil and finally added my own shading effects. Again, any critique or suggestions is greatly appreciated!
Edit: Here's a link to a digitally-colored version of this drawing: [link]