You've done a really great job. The concept has been done over and over but you've made it unique again! This looks really good, the effect you used in the middle looks great and the lines are really good. The vibrance of the colours and combination of flat shading and 3D shading works really well. The way you coloured it looks great too, it's great how you've coloured it so it's not the same in every area. You can even see the emotion in Sonic and Tails' eyes and mouth. This is extremely good and the lines, colouring and shading are really impressive.
Totally Awesome! I can feel the bro power just by looking at it. You my friend are a talented artist. I can't say the same for me because I only do FanFiction. They are all about the brotherly relationship between Sonic and Tails.
lol i tryed to do the bro fist before when i first started to draw. never posted it though. but this is really good! their emotions were made really well. also like the shading and the litte... uh... what do you call whats comming from their hands? action lines? idk but adds more to the pic! great work as always sky!