Old Rose is a shade that’s full of softness. If you use it on a wall, it won’t come across as sugary or sweet, but quiet and composed. If you want to temper the pink further though, think of ways to make it more tactile so your eye isn’t solely reading colour and tone, but texture and patina. Consider plastering your walls with a slightly rough skim, encouraging cracks and pits. Then, water down Old Rose so you apply it as more of a wash. If you want more colour, just keep building it up.
Or, if you have a room that has an adjoining space, such as the bedroom in the first image which has an open doorway to a dressing area, you can choose to paint the smaller space in pink. This way, you enjoy pink’s presence in your main space, but in a small, select way.