I can't see any bluriness, although it might be a tiny bit soft. It could maybe use an extra kick of sharpening such as 300,0.2,0 USM, if that makes sense using photoshop. Although sharpness can be sometimes be subjective so any other opinions?
I personally wouldn't appeal it as the head screeners will likely reject it for being unlevel. It could use a rotation of 1.5 degrees clockwise, as it currently appears thats the building behind (specifically the chimneys) are leaning to the left.
Lastly you may have to crop a bit closer on the left hand side, maybe crop up to the blade of the helicopter in the background.
I reckon if you make those adjustments, you should get the shot onto the database

It's a nice shot so definately worth trying.
Dave