You can create a beautiful painting in a day. All you need to do glass painting is a little patience along with certain things like a clean piece of glass, glass liners, paints, paintbrushes, nail polish remover, and a soft piece of cloth.
Place a template behind the glass object so that you can outline carefully with the black out-liner tube. After the outline of the template-picture is done, let it dry for a considerable amount of time, then apply different colors of your choice.