try standing back...? (in a few different ways)

keep it visible - tack it up on a wall... keep looking at it... then ignore it for awhile.... and look again... and again...
if it's not 'doing it' for you - try to figure out what's wrong and see if you can't improve it... etc etc... ad infinitum. It's not 'easy' advice I know... but it's really all you can do. Also- try to ask youself honestly, when you were excited by it, precisely what it was about it that made you feel that way, etc...