I often paint the ceiling the same color as the walls, tho my ceilings are high. Since it is a nook, it might look cozy with the wall color on the ceiling too.

i know others like to go a shade lighter for a ceiling...or do another complementary shade altogether! White ceilings are not my thing, I guess. My point is, the nook does not have to be the same as the other rooms in that aspect.

That helps. Thanks!