Just as Guud said the shadows are not lining up at all and make no sense. There is a shade where shade should not be at the angle which throws the whole thing off.
Instead of doing a basic bent symbol like you did with the Autobot one, I would suggest something more with feeling without warping it to create 3-dimensional drawing.. or perhaps include that but in a different perspective...
My suggestion would be to take the basic logo (naturally sized bigger) and create a blood splatter behind it with it dripping down.... Kinda like
http://iphonefreakz.com/wp-content/uploads/2009/09/Dexter-Logo.jpg
Being that the Deceptacons are chaotic I would do something like that... but focusing your 3D attempts on the blood opposed to the picture itself... would be... unique... and emotional.
Until you fix the shades etc, I cannot properly give you an opinion on it... as it is un finished and thus progress is meaningless in my opinion until you hit the states of proper critiques.
Keep up the good work tho... I wish I could find some drawings my friend did for me using my name.. had a lot of pictures that if you looked hard had my name in them somewhere like in tree branches etc.
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GM of Piracy & Fallen Eagles
GM of Unguilded
