I put in an order to one of the online printing labs while 11x14s were cheap for an upcoming local competition and the images are quite a bit too dark. I don't print terribly often and am not that well versed in printing.

Does what looks good on my monitor for day to day computing not print well? I printed glossy. I'm having trouble figuring out if its the act of printing that makes my images too dark or if I edit them too dark.