Even orks have their grit to 'em. Unfortunately, you don't have the orky excuse of 'wotz we fink iz wotz happenz' so I gotta ask you to make it all just a _bit_ more serious. I mean, sentinel over there is a goddamn bronze knight that shoots fire out of his hands, and Setsuka's got the crazy 'hairpins of doom' thing. Even though they aren't, the two at least _seem_ physically possible, there's no obvious 'Alright, that doesn't happen ever' with them. 

I'm not saying everyone has to be serious all the time, but the opposite is just as bad, it takes any sort of weight out of it all.