which seems to me to go pretty strong on special effects in a Japanese anime kind of way.

Well since they appear to be screenshots in mid spell/skill, they kind of have to be strong on special effects. I would guess the main visual effect for most spells is not going to last more than a couple seconds, at most.

The maces in the first 'battle' screenshot are a little large for one handed use, but then some of the preview screenshots for BD had giant (anime inspired?) swords and the game itself contained predominantly realistically sized weapons.