When I saw this, I was just laughing my head off. the background and the sky are VERY well done! The green land could be needing some slight extra stuff but the sky is good nether less. Sonic looks so hilarious, like he's screaming "AAAAAAUGH!!!" LOL. I heard a lot about Angry Birds, but I NEVER tried it out. Someday, I might someday. My only request is that you do this to other Sega characters! Maybe Shadow, who doesn't like being flung! This is well done, and an awesome heck of a parody for both AB fans and Sonic fans.
This is one of the best Sonic-Angry Birds crossover in my opinion. I already saw something similar, but it was not as beautiful as this one. I like it, there's a good vision, an excellent perspective, with adequate colours. Sonic's expression is very funny: he's obviously not used to be thrown away with a slingshot Furthermore, the lineart shows a very good technique, enriched with pleasant colours. On the whole, I think it's a nice drawing that renders well the idea to be thrown away without knowing where you'll end up. Thus, I give the author an excellent mark for the vision, a quite good one for the originality, and full marks about technique and impact