Yeah, this has been on my mind since last night....XD
This took my like 3-4 hours just to make this concept in general & I had a bit of trouble coming up with his design since I not only just looked him reference for him, but I also had to search up some army stuff to understand what his outfit design should be like if he was in Sonic Boom.
Also, I know that the male characters(or most of them I think...? Never watched the 2nd season.) don't have a shirt or pants in general, but for him, I think it's perfectly fine, since he would be like some sort of military guy or something.
I'm gonna update and color this later, when I have the time. If there's any mistakes on it, just let me know. But if not, then enjoy! ^_^
Custom Character/Hero (C) SEGA / Sonic Team
Boom design made by me