The signature on the painting, help to attribute
 

Good day!


Can you please tell whose signature on the painting.


Thank you.

Written Serov, but that does not Valentin can be sure.
Maybe the picture will show?

Thank you!


Tell me, what else could write Serov at this time?
Here's a snippet pictures, unfortunately photos of the entire picture yet.

Enriched in this picture just can not .... the level of performance crosses all odds

Thank you for your response.

The issue of enrichment is not necessary.
Interested artist "Serov" wrote in 1902.

Ricasso, there is clearly readable, and does not SEVON Serov.

I think I also tend to option Serov.
But who is - I do not know!

Picture completely.
And the signature on the back

But I do see SENON .

I also seen: Serov, Senon, Sevov, Senov.
I, unfortunately, these artists do not know if anyone heard, please share it.

Added after 1 minutes

So, everything is bad?