The p-trap-change to one without the cleanout at the bottom. Having a gasket under concrete make me nervous. The last pic- why not join the sink and washer drain together and eliminate the sink wye fitting? Is that a kitchen sink or a bathroom sink? The 90 on the washer line is a vent 90- I wouldn't use those unless I absolutely had to, I would stick with a long sweep 90. Will it meet code? Yes, but as a plumber, I wouldn't use it.