Depending on your audience, you may want to censor your images. Some people might not take too well to seeing someone's head being blown apart. I don't mean like 'OMG you weirdo why did you show that!?', more like emptying the contents of their stomach. Some folks are sensitive like that. Seeing Aeris get stabbed through the chest might be tolerable for some people, while watching Hayabusa lop a bad guy's head off might be too much.

You might want to have more pictures that are still violent, but not gorey. Or maybe make 2 different slideshows: one with all the blood, guts and decapitations and one without the extremes.