Sky and cloud murals are a beautiful, relaxing, and whimsical form of interior decoration, particularly in a young child's bedroom. Materials needed for this type of painting are minimal, mainly involving blue and white paints, a brush and a sponge. The difficulty that can occur in painting realistic clouds is in mastering the dabbing and blotting technique. Essentially, the key point to remember when painting sky and cloud murals is that you'll want to avoid overly uniform colour blending and defined lines.
Pour an unmeasured amount of white acrylic paint into a container of blue acrylic paint. Loosely swirl them so that they are not thoroughly blended together, as this will create a new, uniform shade. You should be able to clearly see white swirls in the blue paint.
Begin applying this white and blue swirled paint to your walls and ceiling. The unmixed colours should create a streaky, realistic sky effect.
Mix four parts faux glaze to one part white oil or latex paint to create your desired cloud colour. Blend the glaze and white paint thoroughly with a stirring stick.
Dip a sea sponge lightly into the glaze-and-white-paint mixture and dab it onto the wall. Use light pressing motions when you dab the sponge, as aggressive pressing of the sponge will make unrealistic cloud shapes and cause the paint on the sponge to drip down the wall. Blot any excess paint from your sponge onto a clean cloth before dabbing it on the wall.
Dip the sea sponge, without cleaning the glaze-and-white-paint mixture off of it, into the white and blue swirled paint you used to paint the sky. Dab the sponge lightly over the white cloud shape you just made.
Repeat Steps 4 and 5 for each cloud shape until you've created a cloud the size and shape that you desire. Apply more paint in the centre of your cloud shapes and less paint on the edges, where they should appear to be dissipating. Dabbing the edges of your clouds with an increasingly lighter touch and increasingly less paint will make the edges seem appropriately blurred. Let a little of the blue background show through the edges for a lighter effect.