As said, TZ is not curved, the blade is as wide as the handle, and the handle should be shorter, also, TZ has more chains hanging on the end of the blade:
(Btw, the manga version of this scene does have a curved blade, but all the other scenes in the manga have straigth blades I think.)
But as you can see on the last image, there are more chains, the blade is actually wider than the hilt, the guard should be a wee bit smaller and the last chain on TZ is actually kinda...broken.