art goes miniature

What became of the boy who loved model trains and art?  Mr. Pettibone has emerged into the art scene with a complete exhibit of all the masters' works but in miniature form!  Yes, they are pretty much direct copies of the maters' famous works, some conjoined and others cross reference another artist like the miniature Warhol Campbell's Soup Can that references Jasper John's Three Flags.  With easy pack up and go transport, this exhibit is pocket sized but the question asked is who owns the rights to the small works?  Is Mr. Pettibone creating his own work or is he just a model maker?