Well, have yet to try, though quite hard to imagine a not a square or flowers at the Mondrian Koshlyakov, and the rest are no better:
1. Benoit
2. About Kiffa
3. Van Dyke
4. Ranson
5. Gipius
6. Van Gogh
7. Mondrian
8. Makovsky
9. Klimt
10. Buffet
11. Koshlyakov
12 Gauguin
13 Leger
14 Epstein
15 Marriage
16 Goncharova
17 Monet
18 Nolde
19 Hockney
20 Kirchner
I hope at least half guessed
?