I took this last month when my daughter and I visited Monticello. I'm not sure about this one. I wanted to add a vignette to it but decided to do a linear to darken the right side to focus attention on the left. I'm feeling like it needs something.

http://farm2.static.flickr.com/1194/900828936_39b55d860c_b.jpg

I think you have done well in capturing this and all that is "wrong" here is the very subject is just not strong enough to hold attention. your dof helps alot as well as the off center frame up. Everything looks fine to me, just the subject not. . . . worthy