The color "yawza" picked out is good. The advice ISNT. The reason I say this is because you specifically said you DO NOT want to make the room feel any smaller than it already is.
To avoid doing that, you need to avoid one thing...CONTRAST. Meaning, don't go putting a dark color with a light color. Keep whatever colors you choose very close in shade to each other.
So if you like a blue, pick multiple blues or greens that are almost the same shade.
Also, Since you have a beige carpet, I wouldn't go with dark colors in general, as they will contrast the carpet too much.
You can be bold without making the room small. But pick your fav. color...find some others to go with it, and start painting