I think Daddy looks more interested than son does... ;-) The PP is terrific (as always). The comp is pretty good, but dealing with all of those lines from the railings is tough. You're obviously exhibiting a lot of paternal instincts and emotions with this little tyke. I'm sure he's a cool kid like his Dad!
Ahh the younger years, they're so sweet. Then they grow up! &%#%@$
Nice shot of a father and his son. These are precious moments that must be treasured.
Kinda looks like he's chokin you a bit. :-) I think the crop is done really well.. his pose and position is a great complement to yours. His hands are pointed in a nice line down from your chin for example, and his looking off in the other direction is very satisfying.