As you rethink adding a fixed window, consider either a fixed window that is the long horizontal kind over the shower/tub surround and/or an octagon one with stained glass for the dressing room. https://www.google.com/search?q=images+for++octagon+windows&biw=1366&bih=673&tbm=isch&tbo=u&source=univ&sa=X&ved=0CCIQsARqFQoTCOaJ69fb28gCFcYVPgodogsLDw You could add a couple of pairs of shutters to create a pair of faux windows that look as if the shutters are closed. If you don't want a window that opens on that wall, you might consider having a fixed window and shutters that are louvered to let in some light while protecting your privacy. You might also consider a faux gable with a faux window, perhaps functional as part of the venting system for the bath.

Your layout for you kitchen looks really good and would fit well with the mixture of black and white cabinetry. With the lament bench top, we would suggest melamine (entry level cabinetry) or acrylic bench top, which can come in high gloss feature or matt. The matt surface would go lovely with your choice of bench top, and acrylic is also a affordable cabinetry material. Below are some examples of how Reno4u has incorporated both black and white cabinetry together, without making it to dominantly dark. We feel as if these examples would be perfect for your layout, and depending on if you want more black cabinetry or white you can go either way. This design above is an example with more black than white, can be made matt or gloss with different handles/splash back and wallpaper. With a u shaped kitchen similar to yours, however from the pictures you provided your style may include different design below the island bench. Another kitchen designed by us which shows more white than black, with a bar built in which may suit your design better. We hope this helps you, please feel free to call us on 03 423 9067 and we can provide a free quote for materials and kitchen design, and help you finalise your design further. :)

I think a high wall would work out great. I've heard that soundproofing can be done through insulation so hopefully that deadens the noise.

I like the tiny shelves idea because that way you have more storage for your things.