More sub categories:
postcard - War is no option
Postcard Streetart - capitalism is crisis
Postcard The red ballon of hope
postcard - People, Grafitty
Postcard Hey Banksy!
Postcard Spelling mistake
Postcard Cave painting - Grafitty
Postcard Even Banksy vanishes in history
Street Art - Wave
Postcard - Street Art - No Self No Fear
Street Art - Ganesha
Street Art - Street Style
Street Art - Self-Plagiarism is Style
Postcard Street Art - Nothing Is Real
Postcard Street Art - Postboc
Le Miracles (Banksy & Beyond), Paris
Street Art/Haifa - Israel
Postcard Street Art/Toulouse – France
Postcard Street Art/Ravenna - Italy
Postcard - Little Girl - Streetart