You have three different laminate floors. If you want unity, you need to decide what will give you unity faster. The floors are close enough to ignore there differences. Without seeing the wardrobe units I can only guess what will work best. Add photos of the units you are contemplating and you will get more responses.

So I am planning to do something like that in the picture. I really liked the use of the emperador marble and the balancing of the colours. In the second picture, I have selected the emperador for Wall as shown in picture, the light ones will be for the next three walls and the third tile will be for the flooring. I hope it'll look good.

yes go with some browns and white to get contemporary style with some accent furniture

living/dining/kitchen it's an open layout like in one of the images. the ceiling is uneven so we are planning to get it fixed with re-plastering. I might not be able to get a skilled painter in my budget to get the textures right, so I thought by just applying a coat of cement I wouldn't need a very skilled worker and also get the industrial look.