Sunsets can be magical and come so many different colors and moods! These sunsets capture some of the different moods of the end of day - from tranquil to explosive. I can see them used as a pocket on a jacket, or small pictures grouped together.
They would also make some of the very interesting POSTCARDS that are becoming so popular! You could add some hand stitching in metallic thread or a few crystals as embellishments. Or use #3 or #5 as a background and add a silhouette either machine stitched or applied by hand.