It really is a BIG difference! (Please don't take this the wrong way because it's meant as a compliment...) In the first set of pictures, you look like an obese person, while in the second set you are just a reasonably normal, average person who could stand to drop a few more pounds. You have a lot more of a waist and definition in your arms and chest.
Calorie counting, mindful eating, whole foods plant-based diet.
I'm focusing on a six-week challenge starting Jan 2, 2014. Using the stickK website for added motivation.