You're not bad with classic either, the soft edges makes this look like SatAM style or something. :) Nice pose and he looks as determined as usual,but with the simpler style.
To answer your question about my SU Amy, she is brown because of two reasons. 1: there are already two pink girls in the story (Sally Acorn, and Sonic's sister Sonia) - and
2: in her first "incarnation", as Sonic's girlfriend in the 1992 manga, Amy was brown. ;)
Like I said in the description, when I write those characters into the storyline of Sonic Underground, I change them a bit to fit the universe.
Thanks for the comment!