With your original pictures - I agree with larger rug. But I don't agree with comments suggesting the rooms are monochromatic. They are lively indeed. I think you are just missing some accessories! Art work on the empty walls - even just a single large dramatic piece is in order. In the bedroom on the white wall, in the living space behind the sofa, in the greenish bedroom behind the two beds. Those are instant areas where you can improve. But I think your spaces are lovely and well put together. Also I agree with the comment about table lamps - some of those would really add something, and your coffee table looks so empty - maybe just one gorgeous bowl, or stack some books. These rooms are 90% done in my opinions, just need a few finishing touches. Some of my rooms come out like this because the clients are not willing to pay for those last few finish items or feel they can do that part themselves...

And this is place behind dinning area which I wanna decorate too

I bought 'interior designer for iPad ' for a quick sketch tool - it's quite easy to use - you can import images and build your walls over them - the only downside is it doesn't let you see where the windows are on your import to get them in the right place ( if you haven't got the full measurements) but if this is for you own home - that won't be a problem ! The kitchen design bit lacks decent corners - but as it as incredibly cheap - but gives you plans and walk throughs and perspectives - it can be forgiven for it's few down points ! You can import photos of your fabrics too - to give a realistic image of sofa or rug colours etc ... Have added some pics of a lounge I was playing with !!!

Need help in furniture placement