I'd give this a 3.75 or so, maybe close to a 4. The Pygmalion story didn't end like I thought it would, or honestly quite like I wanted it to, but it wasn't bad. I felt like adding preexisting villains took away from how unique this story was up to this point. I felt like it could have done without anyone familiar but Batman or Gordon.
The Mad Dog story is entertaining with very good art, but it's nothing memorable. I'd be curious to read more about him, but I'm not making an extra trip to the comic shop just for him.
The Aquaman story is interesting. I am not familiar with him or any of his characters at all, so I'm not sure what to make of this one. It's not bad, but again, not really memorable or what I'm here for to be honest.
The black and white story was... complicated. I think I got the gist of it, but it was far more convoluted than it needed to be.
Overall, this anthology series is losing my interest, but I have issue 9 already, so I'm going at least that far.