had my cast iron changed to pvc, does it look correct?

Hi all I recently bought a house and I'm remodeling the bathroom. I had an iffy guy come over to do the waste drain vent and it looks a little different than it was but I'm wondering if it looks correct. Any help is appreciated, thanks.

Without seeing what else is connected, it looks good.

The 3" stack near the tub should be vent only. If there isn't a bathroom above that, you're golden.

A lav waste can be 1.5"
A kitchen sink waste should be 2", with 1.5" trap arm and vent.

Thank you, Terry.