The artists work isn't really anything serious (most of the detailed and long works are abuse orientated), and they appear pretty light hearted. Plus it came from danbooru, where if there's a hint of anything remotely 'bad' happening to a yukkuri it warrants a lynch mob. So it's quite likely to be family friendly.
Not really Ohai. Chinese Water Torture is typically a very slow drip onto the forehead, over a long period of time. This pic is just a faucet running onto her head.