@Nolonar I'd like to suggest a few improvements, if I may.
As you are only just beginning, you could benefit, without losing too much time from what you've already mapped, by re-arranging your tile sheet so that things like cupboards, sinks, bookcases etc., are moved down half a tile. This allows them to 'sit' naturally against walls. At the moment, your sink and stove have a gap between their back edge and the wall.
One of the reasons why you have so much empty space at the bottom is because you've had to cram all the furniture along the top wall. Have a look at, for example, Candacis' thread
here which has some furniture that you can put along the side walls. You can easily create the illusion of cupboards along the bottom wall by taking just the top of a cupboard and putting it right at the bottom of a space on your tile sheet. Doing things like that will allow you to arrange the furniture in a more natural way, creating a better balance to your map. It would also allow you to put in some form of heating. I see that none of your houses has a chimney, but there surely would be some way of keeping warm at night, even if winters were mild.