You're getting better. Just a hint, though, when placing auto-tiles like the carpet, if you hold SHIFT as you place them, you'll get the centre tile. Use that to make it look like the carpet runs behind the walls and for full room carpeting.
Like so:

As you can see, there's a bit of a difference. The second and third ones look better than the first. Try it out, experiment and you too will learn to map better!