Hamza,
I think that the picture B. Zakirova will be interesting to fans of his work as a singer. From Collezioni and investment point of view of the interest they represent. How to say the picture of the same A. Makarevich. He is a good singer as an artist medium, but his paintings are bought. So the price hard to judge, the more they like you write, never sold nor exhibited.
You specified as the site of some confused ... I now I can not understand why Alessio Isupova referred to as "benkovtsam? He seemed to P. BENKOVA not intersect. Although I can be wrong, let art be corrected. And where the private collection of Mr. A____?
The name is, and no collection ...