Nice looking plan. It has a great flow to it and a really smart layout. The laundry room is in a great location!! Looks like you really have a lot of storage too!!
On the garage, I can't read the dimensions very well, so I might be off here a little bit, but I'm wondering where you will put your workbench and tools in there? I've also found that having a sink in the garage is a must have thing. My parents have 9 foot garage doors on their house and it's a bit tight. I have a ten foot door on mine and I think it's a huge difference. Is there a reason to have the walk through door where it is on the side of the garage? Seems kind of awkward getting in and out of there with something parked inside the garage. How committed are you to having storage above your garage? To do this, you are going to pay a fortune to have it strong enough to put anything up there. With all that space in your basement, it's a very big expense to span the garage without using posts to be able to support the load that ends up just sitting up there. If it was me, I would get rid of those stairs and put the walk in door where they are, then truss the roof over the garage and blow in two feet of insulation over that area.
Kitchen looks nice, but I would bump the wall out into the garage behind the refrigerator so you have enough depth for the front to line up with the cabinets.
Master Shower looks plenty big enough. I would make sure that the faucet is on the left wall as you walk into it because you wont have to deal with cold water coming out of it when you first turn it on. Any other location will make it hard to turn it on and not get wet.