As a professional in communication, advertising and media with more than 15 years of experiences I can testify that there is no particular creativity or expression of talent in these pictures for the following reasons.

It’s just mere plagiarism! For, the style of Priscilla Bracks is nothing but the mere and obvious mix of the works of three famed artists I name below.

To a large measure: Pierre et Gilles, a team of two reputed French photographs whose works often features images from popular culture, gay culture including porn (especially James Bidgood), and religion.
See: http://en.wikipedia.org/wiki/Pierre_et_Gilles
And the website of these two photographs: http://www.optimistique.com/pierre.et.gilles/

To a lesser measure: Roy Lichtenstein, a prominent American pop artist, whose work borrowed heavily from popular advertising and comic book styles, which he himself described as being “as artificial as possible”.
See:
http://en.wikipedia.org/wiki/Roy_Lichtenstein
And the website of the Roy Lichtenstein Foundation: http://www.lichtensteinfoundation.org/frames.htm

These artists are well known and popular in the realm of advertising and they did and still do constitute a source of inspiration for many art directors; but no one in this latter profession would dare plagiarize the works of these artists as obviously as Priscilla Bracks did. For, those artits are too well known in the realm of communication, and a creative director would not let show such montages to a customer as the expression of the pure creation of any advertising agency.

All this makes Priscilla Bracks hardly more than a political activist who sized the opportunity of her skills in photoretouching and photomontage. Isn’t that an excellent example of what some calls anti-American propaganda?