X-E1 Long Exposure Panorama

Long time lurker. First post!
Just got my X-E1 a few days ago and decided to test the IQ in an interesting way... I took 21 photos off a tripod using:
35mm prime
f8.0 
ISO 200
Bulb 15s

And stitched them together using PTGui
Image Size: 22,670PX X 14,169PX.

Here's a sample shot with crops

Full Resolution JPEG- Had to zip the photo because browser crash trying to render pictures this big... http://dl.dropbox.com/u/327800/sf_skyline.zip