Looks good. LOVE the valves the used!
Lets talk about that white tube standing tall by the heater. I am guessing it is a tablet/puck feeder. Not sure what the black line coming off of it is or does though. If that is a puck feeder then you need to make sure they put in a check valved between it and the heater. Also know you will not be able to use the puck feeder for long or often. The pucks have *extra* stuff in them to bind them together. They do add FC which you need BUT they also add CYA aka stabilizer which you also need but not too much. If your CYA gets too high then you have to drain and replace some of the water

Here is chart showing the correlation between the two
FC/CYA Levels I also don't like the fact they did not use unions on either side of it. Over time it will need to be replaced so you will have to cut the pipe there to do so.
I would LOVE to see you look into a SWG as seen here:
Salt Water Chlorine Generators - Trouble Free Pool If you don't want to go that route you can do like I do and add liquid chlorine each day. No biggie really just not as easy as the SWG
Kim