Heh actually TM Megatron didnt have the dino head on his hand. Just a tail gun weapon, which I did give this one. Still, there are inaccuracies, like his turbines being on his shoulders rather than his back.
I like the Chest in bot mode. You did a wonderful job integrating that into the Grimlock chest. I scanned (quickly) through all 7 pages and didn't see if that was off the original toy.
Well if you did all that you deserve a proper answer there, old thread or not! Yep, the chest is from the original. I cut a chunk out of Grimlock's chest and replaced it with Meg's chest, then sculpted around it to integrate it into Grimlock's torso better.