Wolves attack that the picture, a copy of crickets?

[Alex_SG]

Dear participants help to understand that the picture , if the copy is what the artist , the approximate value ?
It seems like the plot is similar to the work of NE Sverchkov. Was not very dirty old native stretcher, old canvas , thick, without gusts , cuts. The back of the photo do not spread as a new sub-frame with plywood , for safety. Thanks in advance.