Do you have a version with dimensions?

Use the space currently occupied by a closet to the right of the garage entrance for a bathroom and create a new closet in the empty space to the left of the garage entrance. It looks like you have steps leading to the basement (or possibly a bonus room above the garage), so you should have additional storage space there.

I'm sorry but I'd bet you that you are not using an architect but instead are using a draftsman who calls himself a designer.

My guess is that the original design had two closets in the master (and no angled walls).

Well...if a bathroom near the mudroom is important the design can certainly be modified to include one. Go back to whomever drew the plan and ask that a bathroom be added.

Do you need 2 or 2.5 bathrooms?

What if you moved the master to the left side of the house and the two bedroom and hall bath to the right side of the house. Then the hall bathroom would be accessible from the bedrooms and the mudroom.

I'm looking for opinions on our home layout, mainly I wanted a bathroom near the mudroom but he said there isn't space to add a toilet in the laundry room any suggestions?

A toilet in a laundry room would be an absolute deal breaker for me -- no potties near my clean clothes! ;-)

Would you consider a powder room instead of the angled master closet?