An illustration of some of the ideas proposed... White curtains installed near the ceiling, take down the horizontal blinds, replace your chairs with white or light beige upholstery, you don't really need a rug in the dining room but I would suggest one for your living room (that goes under the sofa, not sit in front), a few throw pillows with some of the colours in the rug, artwork on the walls. Your dining room furniture is more of a traditional style while your sofa is quite modern so I would replace the diining room chandelier for a more updated look. Your fan can also be a more modern design. A long sofa table with lamps would be nice, you don't seem to have much lighting inthe room. Also, a coffee table. Here are some of the ideas ...

What does your laundry have to do with your master bath? Nothing, unless it is IN that master bath.. Can blue and green be used in same house ? Absolutely. Your buggy is ahead of the horse. Post the remodel P.l.a.n. That is the walls, the layout, etc of what you are doing, especially if moving walls. That means what is the kitchen plan, the bath plan etc. and as they relate and are located within your living space. You are way, way way out over your skis: )

Here are some ideas for styling the taller areas. I especially like the top left on the bottom picture, with a basket-of-books for smaller books, and a smaller piece of art work above. (Not a fan of the binding-to-the-back look). You could find baskets or boxes that are about the same width as the shelf, and use this for both tall areas. Bonus if you can find a piece of artwork with a literary theme. If you add any more vases, baskets etc., consider painting or spray painting them the same colour as your green chair or the blue in your dining room chairs, to tie the bookcase to the rest of the house's decor colours. I don't know how you've arranged your books, but consider grouping the more colourful books by binding colour. It will give you little pops of colour in the book case. I moved your yellow/gold books all together on one shelf to give you an idea of how it would look.

I think what you have so far looks fabulous. I would continue with the color scheme. I did something similar throughout my home with black as my primary accent color, along with blue and magenta. I am very happy with the result. Instead of putting navy paint on the ceiling would you consider wallpaper that contains shades of navy so that you can change it up a bit? I think variations of the same color add depth to a space.