Reverse glass painting
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This art form has been around for many years. It was widely used for sacral paintings since Middle Ages. The most famous was the art of icons in the Byzantine Empire. Later the painting on glass spread to Italy where in Venice it influenced its Renaissance art. Since the middle of the 18th century, painting on glass became favored by the Church and the nobility throughout Central Europe. A number of  this traditional "naive" technique fell nearly to a complete oblivion and its methods of paint composition and structural layout had to be re-invented by combining acrylic and oil paints. Also the style of painting and especially the themes had to be varied and adjusted to new perceptions of the world in modern times. Thus painting on glass started to become popular again since the 1990s. However, many painters of this genre affirm that abandoning that unique tradition of naivist approach to painting on glass is rather difficult. Therefore, the painting on glass becomes a natural selection for refurbishing a new house built in a traditional rustic style.    Reverse paintings are more challenging to create as one must, for example, in painting a face, to put the pupil of an eye on the glass before the iris, exactly the opposite of normal painting. If this is neglected the artist will not be able to correct the error as they will not get in between the glass and the paint already applied. No such care need be taken with the abstract form, but with this form there is not a good idea how the piece will look like until it is finished. This process is not like stained or leaded glass work in that it is not intended to hang in a window with light coming through the piece. Hanging on a wall, framed or unframed, with a lot of light directed towards the piece provides best viewing.