Alright I am going to try to help your posing by critiqing the major flaws I see....
1. In your front double bi pose - Get your fricken he head up and hold your chest HIGH. Why are you standing behind the guy that beat you?? Look at the two others and how they are holding their heads high and, more importnantly, their CHESTS!! Quit looking down at the judges, the girls, or whoever the hell you were looking at in the crowd. In posing, if your head drops, so will your shoulders and chest.
Remember Arnold in Pumping Iron where he was showing that dude how to pose and he said "A little guy will "hide" like this (as he hunched over), while a bigger guy will go (as he stood tall and "bigger). BOTH guys in the front double bi shots are posing correctly. Look at how tall the guy on the left is standing. And look at how high his chest it. Dude looks confident and like a statue and he isn't even all that great. You look like a submissive guy who is ready to take 5th place and be happy with that placing (or go bitch on an internet chat board about why he lost).
2. Your side chest shot - Again, you are fricken looking DOWN into the crowd and it is pulling your chest and shoulders down. Find a point against the wall in the back and focus on that. Look like a statue. And, last but not least, if you don't stand TALL in that pose, your stomach will stick out like Coleman's. Don't hunch over. Don't look down. Look out and keep your chest HIGH. Look at the guy who took first. Look at your waistlines. Look how TALL he stands in his posing.