How is this type of shirt made?!?

[charlelootz]

i was just wondering if anybody out there knows how a graphic like this is made, is it vector art, screen print or painted on i love this style and would like to do my own, please help if anyone knows

http://i51.photobucket.com/albums/f353/charlelootz/9_06.jpg

[DUM]

Vectored in illustrator or freehand then color-seperated and screen printed color by color.