I've found Finch's work in the DC universe to be hit and miss. Granted I've only seen his art on Forever Evil, but considering that's the flagship event at the moment I imagine he'd be putting his best into that project.
My issue is that he draws all the male and female characters the exact same way. They all have really sharp jaws and sort of eurasian looking eyes.
His work on anatomy also isn't the best. Look at Sinestro's weird legs in these pics.