The roof shouldn't end where the wall does. It should point out a bit.
The whole roof formation also seem strange, but oh well.
Is it just me, or isn't the first pic of the wall of the house too empty? Lacks windows on the second floor I guess.
I find the color choices disturbing.
The red carpet, the blue carpet, the blue walls in the bathroom and I seriously think chess patterns is always a bad choice.
Use more white and less sharp colors for the bathroom. Maybe use a bit wood too, as it fits the theme.
I also suggest that beams may be a good addition. This does not fit everywhere, but I just want to make sure for you that they're available.
I see that you're great with cubescaping. You make it very smooth and lively.
But, I assure you that you have still much to go.
My nemesis when I make cubescapes is repetition. It looks stuff and I get mad when I see someone else do it.
Here's and example of a repeated part. You see.. it looks like stairs.

All in all, a nice hoos. 7/10
The server is also great.