The pattern Nimbus evokes the ethereal clouds of pearly shimmer, reminiscent of the moody mists and foggy mornings. Visit Beautiful Walls. Nimbus Grey wallpaper is a type of wall covering that features a soft grey colour with a subtle cloudy pattern. It creates an elegant and calming atmosphere in any room, making it a popular choice amongst interior designers and homeowners alike. This timeless design adds texture and depth to walls, without being overpowering or overwhelming.