It looks like a great floor plan. I may play with your house a bit.
Also there are lots of color palette generators or sample color palettes on line.
Here's one that lets you decide if you want complimentary or analogous color schemes, among others, and lets you play with the hues to get colors you really love - soft, strong, etc.
https://coolors.co
In case anyone is interested, there IS cc attached to this lot, to include the arezza bathroom counter; but, this one is the safe left version, rather than the right.
For those who do NOT want cc in their sims 3 folder, it is possible to rename your sims 3 folder and install this lot in a new sims 3 folder. Then, just copy over the library file to the old sims 3 folder OR just decorate the house in the new sims 3 folder. Then, you can always delete the new sims 3 folder when you finish and rename the old one back to sims 3 again.