1 It is a cool idea! But.. I guess first time you will like it.. later it will be too boring for you. I prefer to have a white ceiling. At least it would never exasperate me..
2 “I guess first time you will like it... Later it will be too boring for you.”
Maybe you are right but I think that to have a white ceiling is not interesting and boring. At least I can repaint it.
WE need to change something in our lives to make it more interesting.
5 I don't know about a ceiling repainted as a blue sky I'll try it,
but as for the ceiling full of stars it's fantastic. There was such ceiling in my bedroom! Extraordinary feeling of the universe infinity!!!
6 points 
1 It is a cool idea! But.. I guess first time you will like it.. later it will be too boring for you. I prefer to have a white ceiling. At least it would never exasperate me..