He's has more body fat in the later pictures. My buddies have walked around at 205, 215, and 237 and cutted down to 180, 176, 193 for competitions and have looked extremely smaller than they did (but big for the weight). Depending on diet you could get that way (up and down). The last pictures are from winter. Look at ALL his pics in winter and compare the summer pics, he should be bigger he has way more fat. Naturally my body will do this even without lifting or changing diet. Summer your more active, burn more calories and get leaner. I bet if you follow this, by august/september he will be leaner.
I doubt this dude competes. He quad are decent size, chest is ok at best, arms are small, delts are ok, lats are pretty good, shoulders/traps are non existent, and calfs look small
I went from 220-215-205-225-230 within 2 months and the only thing i changed was eating (and my bodyfat was realatively the same)