I've been using a service called ifttt (if this, then that) to post the 1st image of my post and the text to Facebook as an image upload. I love this because it looks great with a nice big picture representing the conetent for my FB audience.
This is my website: http://www.thecorejrhigh.com/
I had a recipe set up to pull the 1st image from my wordpress posts to facebook as a FB image post. So far, no dice, nothing is working! I used to get it to work, but recently all I get is a placeholder image!