I don't remember shit about B'elana , or much of Voyager characterisation except :
Janeway : Hardass
Doctor : fun guy
Tuvok : generic serious vulcan
Neelix : obvious comic relief, silly
Chakotay : Native american guy with a cool face tat
B'elana being mostly angry makes sense as a Klingon and an engineer. each facet isn't known for being sunshine on rainbows, combined, not exactly going to be a delight.