The poem was pretty good over all. The last two phrases don't flow right though. You had a good flow because you where rhyming the second & last sentences but the last two phrases you didn't. I'm not quite sure how you should change them to make them flow but when I do if you still need help I'll tell you. Also, I think that your title should be 'Postcard'. 'Holding me over' just doesn't fit to me. It doesn't seem like it has anything to do with the poem and since you say postcard so much then that would make sence to me to have that title. Well good luck and thank you for posting.