www.cafepress.com/ronniesprints

How long do you persevere with a project? I have this site www.cafepress.com/ronniesprints out there to sell my artwork and seem to be flogging a dead horse.Pun! To me it seems just perfect but i don't seem to be getting anywhere with it.( To go to this site from here scroll down to see the links,cafepress). I have prints and mouse pads and cards then a link to my other cafepress site that has all kinds of other stuff. I have to say i thought it would go better than this. Should i just stick at it or go in another direction.I welcome any ideas and feedback. Just a little bummed i suppose. To get to my 'artwork in progress' site go down and find the image like the one above and click on that.
Cheers for now Ronnie.