Man... I LOVE your artwork, your style...
This Megatron is great!
THIS IS HOW IT SHOULD HAVE LOOKED LIKE IN THE MOVIES!!!
And you are damned right about the treansformation, I follow Transformers since I was little tekno-knob on the metallic ground and G1 was the hottest thing..
The only reason I'm not giving you a 10 is because the building on the left looks odd, and the reflection is not accurate. Anyway, don't feel bad about that (unless you are an insane perfectionist like me that would go nuts for the slightest detail u_u )(hope that isn't the case... it's not healthy, I tell ya :[ ), as I said, I liked a hell of a lot, and I always like what you do.
You have no idea how much I wish to be the head of a project on the future, and have you as lead artist :)
KEEP UP THE GOOD WORK!!!