Apologies, but I voted for Dog because it's just so accurate. As soon as I looked at the picture I thought, "oh hey it's Half-Life 2." Not that yours isn't good... I just think Dog is better. =/
I totally would've voted for you had the Dog MOC not been in your poll though, I really like what you did with the head and cape, and even the feet and legs. It does seem a little messy because of all the System you used, though.