Let me propose a separate plot to give it the address of useful sites. This may include sites that provide the results of tenders, personal pages of artists - why not, right? etc.
For example, recently I found a piece here:
http://www.stockartist.net/index.php
Frankly, I have not figured out how to use it, but just maybe, someone realized and tell us?
In general, do not insist, but I think it would be good, and in any case, quite harmless: p