Photographer uploaded with permission from Większe Zło (creater of the poster), who had permission from Dashow to use the Cthulhu image. Use on Wikipedia with explicit permission from Dashow.
Licensing
Object
The copyright act from February 4, 1994 in article 33 point 1 allows the propagation of works that are permanently exhibited on publicly accessible roads, streets, squares or gardens provided that the propagation is not for the same use. The name of the creator and source should be provided if it is possible by article 34. This use is royalty free, provided that it does not harm the legitimate interests of the creator by article 34.
See Copyright rights in Poland § Freedom of Panorama for more information.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.