the house is gorgeous , I got some tips for you if you don't mind, hope you don't consider them too much, they are very little things, if you change them, it will be great
1. when you want to match colors between the floor and the wall, the floor color should match the middle section of the wall, try it and you'll see that it feels more comfortable to the eye,
2. use the triangular floor tiles to separate the areas, us CTRL + F on your keyboard when putting flooring to use them, they will give a neat look to the flooring
3.use terrain paint, it's free, and you can completely change the outside looks of your house, if you got some money left, try the landscaping, there is a help thread on that here