The first thing, I was charmed with this drawing, I put you in quite 5 stars because really...I am charmed with it!
Then, the drawing I it see very well, that is to say, the effects, put it, the Sonics ... be quite brilliant!
The originality this time has been very good for your part, you have could do like a drawing of modern Sonic and classic Sonic in one poses and in a place that not would happen to put many people.
Your technology ... that it is necessary to say, it is impressive, really your technology always leaves me with the opened mouth, whenever I see your drawings I think that really they have made an artist of elite, je, je. :3 And finally, be I draw yes that has impressed me, and much, je, je be still like that, you are brilliant!
Oh wow this looks really great! I really like how you have them posed the same, side by side. c: It's really quite awesome to see old version Sonic with new version Sonic. xD Love the shading as well. Very well done! c: