I diy my toilet flange. First time messing with draining with hvac background

There was drip from the flange to the basement. I decided to take a more permanent solution atthen just using jb weld. I transitioned 3" copper to 3" pvc. I think I did pretty goo. I had to shorten the oatey flange to fit to the transition fastener. There is a small gap in the fastener on the pvc side. It's holding real well so far. How'd I do?