This is a nice conversion, but the proportions are a it off.
You've got a big empire body on tiny brettonian legs. I'm not sure if that's a pistolier torso, or maybe one of the new greatswords, but either way, those guys are gorillas (our free company and cannon mortar crew are also big models). On the other hand, the brettonain soldiers are very small... even smaller than the 6th ed swordsmen/halberdiers, who run small even by empire standards.
For this guy, I feel a better set of legs would be the kilted legs from the 5th/6th edition command sprue. I'm sure there's probably a bunch of people around here who have spares. They're one of the beefier sets of empire legs, and would look pretty good on this guy. A spare set of legs from the cannon/mortar sprue would also be properly sized.
Now all of this is pretty nitpicky. But then again, I'm a nitpicker.
I go to a lot of effort to keep my models reasonably proportioned. I try to make sure that big arms and heads got onto big bodies, and that smaller bodies get correspondingly smaller parts. It's a lot of effort sometimes, but I do find it worthwhile. It doesn't really show much until you pick up the model for a closer look, so feel free to ignore it if he's going to be buried in a regiment.