Technically speaking, it's not that realistic. If you meant gory, then yes, it's definitely that xP.
Why I think it is not realistic? Alright, for the first pic, I REALLY don't think any animal's or person's eyes would fly out of their sockets like that. I do give kudos for nailing that lightning bolt strikes the most conductive part of meowth - the charm.
The second pic is arguably even less realistic. The position of Hypno's body is awkwardly stiff and I'm pretty sure that, unless that Hypno was doing some superman flight into Pinsir's pincers, his body would be angled lower, and the limbs more drooping. You can argue the shock of being beheaded raises the limbs momentarily, but it doesn't really look like that here. I reckon 'realistically' Pinsir's pincers would be more suited to crushing rather actually than slicing someone's head off, but I think that's more of my personal view more than anything else.
I could be completely wrong, however :P