A scaled and labeled plan drawing would be far more helpful. Use a pencil and graph paper (at a standard scale.) Or get rid of the texture on the drawing you have, lay it flat before taking the photo. It’s impossible to tell anything from these images.

I think 10ft is too narrow for a master bedroom personally, however you do have that sort of pinch point in the existing bedroom as well. I think I would consider moving the bathroom to the outside corner instead of the closet and have a walk through area for his/hers closets and you can have more light in the bathroom at least. Also would be closer to the dresser when getting ready than current arrangement. It would be further to walk though to the toilet, but less noise to travel in the middle of the night too. All trade off only you can decide on. If one of you would love to use the tub on a regular basis then I'd keep the tub. Yes more expensive, but if regularly used and appreciated then it might be worth it. The other tub seems like the kind that is great for bathing little children and not for an adult to soak in. Only if you have plans to remodel that room and add a deeper tub would I skip a tub in the master.

I would start with a designer and then use tradesmen they recommend

I like the architect's and Cpartist"s plan. Your bathroom has more space in those plans. I would use a built in tub for ease of cleaning and easy entry into tub. I think your house on the exterior will look fine without windows in the closets. The windows will interfere with hanging your clothes. Can you add a window next to the bed as shown in Cpartist plan? How wide would the bedroom be if you removed the jog in the bedroom wall on the right? Or could you push the bottom right bedroom wall a couple inches into the bathroom to make the bedroom wall on the right straight?