Viktor Bykov is a Russian painter living in the general vicinity of Moscow. He studied at the Cheliabinsk Art College and the Stroganov Art and Design Institute in Moscow.
Outside of that I can find little information, at least in English.
Bykov paints landscapes in oil that walk an interesting line between naturalistic and invented color, at times playing with color combinations that threaten to fall into the range of treacle, but usually pulling back from that and managing to restrain them in interesting, somewhat unorthodox compositions.
Unfortunately, I can’t find a dedicated website for Bykov, though again, I may be limited in my inability to search effectively in Russian.
I don’t normally link to Facebook pages, but in this case, this page, evidently not maintained by the artist himself, is the best source I could find for his paintings.
There is a video slideshow of his work on YouTube.