The following is a ginormous pic of Bob Rafei and the board full of concept art from Sonic Boom as seen in an earlier video, but this capture might be a proper photograph as it is way too high resolution to be a snippet from a video. At the moment we have no true source of the picture. But nevertheless, it’s here and for you all to see!
One of the most interesting characters shown is what appears to be Marine from Sonic Rush Adventure making her comeback.
Not only do the colors and the patterns match up, but she is also stereotypically carrying a boomerang and she did speak in an Australian accent before.
Another character, is what appears to be a robot that looks to have very similar features to Emerl, last (and only seen) in Sonic Battle (not counting Gemerl’s appearance in Sonic Advance 3).
While we don’t have a definite source for the image, we have Eitarou and A Real Human Bean to thanks in our forum for finding (Eitarou) and posting the full image (A Real Human Bean). We also have an adjusted (albeit smaller) shot of the pic by Storme Prince so you don’t have to strain your eyes as much.
So there you have it! Enjoy! 😀