If you love that wallpaper, use it in bathroom. Not really right for behind bed. I would go a drum style chandelier. In a silk pale gold. Your bed looks zen or Asian to me. I love it. But, you don't. Need to much with it. Keep it simple a more formal drape on windows, color would depend on wall color and bedding. I'm thinking a dramatic peacock satin. Use a lighter same tone on walls a rich teal. Ceiling can be gold leaf. With alight that cast shadows on ceiling at night. Then your wall paper will tie in. Furn should be mirrored.

Pankaj, I just realized that initially you told us that the bathroom area was 12'-0" x 9'-0" and later you mentioned that it was 11'-8" x 8'-0". In the last floor plan, I forgot to change the bathroom with the new dimensions. Below is the floor plan with the correct dimensions for the bathroom. The bedroom is ok, I drew it 19'-2" x 12'-6". The new layout does not change the way things are placed. Everything still fit. The only difference is that the vanity is now 4'-4" long instead of 4'-8". and the toilet is closer to the shower by 1'-0". Can you give me the lengths of the walls K and L. They are the walls between the vanity and the shower area. I will send you the new layout once you give me the length of these 2 walls.

Unfortunately all your options require custom work: It looks like you need an 18" corner cabinet. You will have to modify the last wall cabinet on the left. As I am eyeballing it, you should be able to cut the last cabinet in the middle and then shorten the left section to fit the space of the wall next to the door trim. It's an option that makes the area looks symmetric. Or you can install shelves over the sink. I would not recommend it because it will take the looks away. And the last option will be to remove the last cabinet, shorten it so it fits over the sink and install a single cabinet where the double one was. This will leave a triangle space behind the corner where the two cabinets will meet. You can block the space under it. Hope this helps!

Unfortunately, I do not have a photo for you and have been unsuccessful in downloading my sketch. I think I can explain better what I meant. Your window behind the bed cannot be centered behind the bed and presently looks a little awkward. To remedy this, I suggested framing it with wood trim and creating another "fake" window alongside of it also using wood trim to frame it. Both the fake and the real window would get two rows of louvered shutters, a top row and a bottom row. Obviously, the lovers on the fake window would remain permanently closed. They are there only to give the illusion of another window. The shutters on the bottom half of the real window would remain closed, but the louvers would open to allow light and air. The top shutter could open to access opening and closing the window but most of the time, just have the louvers open for light and air. You will have created a bank of window that your bed could be centered under and I think it would look nice. I would use a headboard with wood or metal spindles that allow the light and air from the real window to pass through, yet give you something to prop pillows against. I must say though, if you did not want to do this, I love the recently added photo by Anne dee with white drapes, gray walls and some framed pictures that really help balance the awkward window. That was a beautiful room and looks a lot easier to accomplish than my idea. From your photos, I am not quite sure you have enough wall space to do it exactly like that, but I am sure you could experiment with the concept and come up with something lovely based on that idea.