This is a two-dimensional representation of a copyrighted sculpture, statue or any other three-dimensional work of art. As such it is a derivative work of art, and per US Copyright Act of 1976, § 106(2) whoever holds copyright of the original has the exclusive right to authorize derivative works.
Per § 107 it is believed that reproduction for criticism, comment, teaching and scholarship constitutes fair use and does not infringe copyright.
It is believed that the use of a picture
to illustrate the three-dimensional work of art in question,
to discuss the artistic genre or technique of the work of art
or to discuss the artist or the school to which the artist belongs