Definitely the grey, the lighter limestone colour is too yellow for your house!

Match to garage roof colour. Maybe a 'timber look' panel lift door. Matching to the facade could mean a mismatch of similar colours hence my suggestion of roof as its close by yet far enough away.

Hi Louise, I did a little mock up for you. I would look at using some more greys and whites and brightening up the room. I mimicked your lamp and just "sprayed it gold" and changed the shade colours to draw your eye up to the artwork. I liked the bedding so played off that a little and added more textures and I love black, white, grey together, super chic and glam. It's amazing what a lick of paint can do. You would need to get permission to do anything to the woodwork, if you're a tenant its maybe best to leave it as is. I dont know what colours the other walls are but if theyre neutral enough you could leave them as is. Hope you like my attempt and happy to answer any q's. You're welcome to follow me too, more projects coming up soon! Amy

If you want a light render and you’re looking at Surfmist for the garage door then use Surfmist for the whole thing. You don’t want more than three colours inc your bricks and monument so that gives you one other colour for everything else.