Road Head
VIP
Some good friends of ours have a ginormous master bedroom...20'x15'-ish and 10' ceilings, and it was just a really uncomfortable room. Our 12'x12' is pretty tight, fortunately we don't have dressers or side tables or anything, just a bed, so it is ok. Id imagine something in the middle...14'x14'ish would be large enough but still cozy.Huge difference between knowing they would not get the project vs. giving them an opportunity to earn the business.
As for your later designs, I thought the bathroom stuff could not be over the garage? Your designs are getting better, using that huge wasted closet space from the beginning for better things, but it also looks like your original "requirements" are no longer requirements.
From your last drawing, I'd replace the pantry with the fridge. Then move the master bedroom wall down a couple feet and put a much larger pantry there. 19'6" vs 17'6" isn't going to make any difference in how big the room feels.