I can imagine that children would feel comfortable in this room. Floor space for games, sloping roof creating nooks, roof window with natural light, built-in bed in the corner with a small private room within a room & soft soothing colours. Nice that the ceiling is in untreated wood. The room has high cosiness factor. Nice place overall for children to live in. (I might have wished for more comfortable seating, large thick rugs & some cushions on the floor).
Take care / Marie