Stay with light beige for your main pieces like the sofa and chairs. Add in other colors and patterns with pillows and throws. Keep the drapes simple and hang them high as possible (with a traditional height ceiling not a vaulted). It would help to have pictures and to know what style of furniture you prefer--modern, traditional or a mix.

Sounds okay if that fits with the style of the house.

It should look great but test drive a few blues they can change a lot in different spaces.

First thing you need is a pad of graph paper to understand that there is no way the furniture items are to scale (exception could be the dining table) I'm guessing the kitchen is off to the left and the main entry is into the Drawing room? Can the wall be eliminated between the two spaces for more flexibility? - if so, the drawing room space would lend itself perfectly to a round dining table. But the main thing is to draw on graph paper the space & actual dimensions of the furniture you'll be bringing to your new home - so you are not shocked when you move in.