The lav on the left should be run with 2" pipe, including the vent.
Make sure the floor drain is vented. Having the toilet and the washer running by it, it needs the vent.
Consumer report on the new toilets
How Green Are Low-Flow Toilets?
Terry Love Plumbing Shopping Cart
You show the shower drain, and the optional floor drain vent, as being horizontal.....a big no-no