Just adding a note that this module is unmaintained (as expressed by the author) and has stopped working for some time. If you are looking for alternatives, try REST::Google (which includes REST::Google::Search::Images). The latter has been working OK for me.
Nice little module, very easy to use, does what it says it does with no fuss. It would be nice if you could specify more of the google advanced image search stuff, like the desired minimum resolution, etc.