Pastel paintings can be found in a variety of places.  From online to sidewalk sales, pastel paintings are a wonderful find wherever they happen to be found.  I would begin a search online, not only to find pastel paintings, but to discover which kinds of pastel paintings most appeal to you.  From there, you can then expand your search to find pastel paintings in stores and sidewalk sales to purchase and place in your house, or purchase online from the comforts of your home to have a pastel painting that matches your style, décor, and preferences to display in your home.