Looks good to me.
Fantastic shot!!! Really nice!
I agree that it is a nice shot. The thumbnail looks very different from the enlarged version, and I'm not sure which is correct. The thumbnail is much less saturated and bright. At any rate, since you said it was okay, I did a quick edit just for fun. This edit is from the enlarged version, which I felt was a bit too lime-green in the grass and a tad overexposed in the sky. I deepened the grass and sky and brought up the shadows on the right a little bit to bring out some of the texture details. I also reduced the saturation ever-so-slightly, although you can hardly tell since the other adjustments I made seem to have made it look nearly as saturated as it was before. This was just a very quick edit, so there are a few things that could be better- especially the sky- as I didn't want to spend too much time on it since it was just for fun and demonstration purposes.
<img src="http://www.thephotoforum.com/forum/attachment.php?attachmentid=53580"/>
My problem with this is the color saturation - it just does not appear realistic. On my monitor the grass is kelly green and the sky has a purple tint with a pink haze over the trees. I agree with FanBoy about the placement of the building, the composition would be more pleasing to the eye with the building off center.
From a quick look at the museum's site, there is some great photographic opportunities there!