Painting Tsvetkova

[Altim]

At the auction, The Golden Section in Kiev in 2009, was the work of Tsvetkova . Lot 149 on this link :
http://www.gs-art.com/auctions/ecata...ion-08?start=7
The work I like , has the expertise V. Tsitovich and chemical analysis with the definition of creation time .
There is one thing but - the signature later , applied marker . What is common among Valentina Petrovna .
I'd like to become the owner of this work , prices are now changed for the better . But I would like to be sure :-) .
Who in the Crimea , is closer to the sources , you can try to confirm the authenticity of the work or to find out about its provenance ?
This format canvas simply because the market does not "fall " in principle .