Ok kitten....
#1 has a deep shadow under his chin. I'm guessing that you used your pop-up flash. Nice snapshot but not overly portrait-y to me.
#2 does nothing. It looks like you snapped a pic of a kid sitting on a bench.
#3 looks over-esposed and you chopped off his hands.
#4 could work with a closer crop but you amputated hands again this one.
I agree, #3 looks a tad over-exposed and overall framing is the dominant issue.
Play with the DOF a little bit. These all look too much like a p&s. The colors are flat as well.
Damn, talk about a hard croud to please 




