We have BM Lucerne in a basement bedroom. It's similar to Blue Danube. Love it.

I like my first idea best as far as use of space. I know people say not to put toilets on an outside wall. We had one in our last house in Iowa, but we had 2X6 construction. I don't know how high your window is, but I'm guessing the toilet would fit under there. The shower would be 5 feet long or shorter if you want a wider space to get to the toilet. (kind of tight the way I have drawn). You could do a 5 and half foot long shower and do an angled door at the left end to allow room between the shower and toilet. The vanity would be about 7 feet long, unless you do a 60 inch vanity with a linen cabinet at the door. I would reverse entry door swing if you do that.. The second top right could work and you would still have a small closet. The bottom left plan would require waterproofing your front window. Hopefully someone will give you other ideas. The bottom right plan is bigger, but no closet. Each square equals 1 foot.

When people think about painting rooms or picking colors, sometimes they forget what they really like. Don't go with a color you think you should pick, go with a color you enjoy. What is your favorite color? Don't know? Check out a design showroom near you and walk around and see what you are drawn to.

Thank you! Also it is 2 different bedrooms so can be 2 different color choices