First, the canvas is estimated by author. Accordingly, the older the painting and the more famous the artist the more it will give in any auction. Of course, modern masters in this respect is very much losing the acknowledged geniuses of bygone eras. Among young artists spread the myth that if in their country on their work no collector demand, even in the West they are sure to be in demand. This is wrong, as the experts and collectors from abroad are also eager to purchase works of genius.
The following paragraph, which determine how much you can give for a particular canvas, is the time when this picture was painted. On this basis, the work of the 18th-century a priori will be more expensive paintings of the 20th century, due to the fact that is considered an antique.
However, even if the artist and his work does not fit the description of the first two points, he still has a chance to get a very decent estimate of the value of their paintings. After all, it affects the role in contemporary art. If it completely reflects the events of the day, written in the style and spirit of the time, a picture was evaluated highly enough.
The quality of the picture also takes an important place in determining the price of works of art. Certain paints, canvas, brushes used - all in some way changes the cost of fabric.
Another parameter used to measure the cost of the paintingis its size. It is foreseeable and understandable that the smaller the job, the less it will cost compared to any large-scale work of art.
If you are an artist, just a collector who seeks to sell existing artwork, in your case, the assessment pattern will affect her story. The number of previous owners, damage the quality of the restorations, history of previous purchases - all of this allows both increase and reduce the cost of such work.