06/29/2012 03:41 pm ET | Updated Jun 30, 2012

Jilly Ballistic, NYC Street Artist, Edits 'That's My Boy' Subway Ad And More (PHOTOS)

Artist Jilly Ballistic says she "do[es]n't make pretty pictures," and it's true. WW1 imagery placed throughout the city does not a pretty picture make. Nor do the brilliant edits she's made to subway ads, cleverly using personalized system error messages to poke fun at the ads' various products.

You may have noticed some of Ballistic's work riding along the L train, strolling up pedestrian walkways, or nonchalantly occupying a subway seat on the D train. But if you haven't, check them out.

See below:

All photos courtesy of Jilly Ballistic.

jilly ballistic

Jilly Ballistic Street Art