Really nice shots. Perspective and warping correction were my only real criticisms when I saw the first post, and I see that it's been addressed. And just to add to Don's post, the corrections available in Lightroom are identical to what is available in Photoshop's Camera RAW editor, so don't think you need PS just to do them. The latest version of LR has some cool automatic corrections, but they can all be achieved manually with LR 3.6 and LR 4 as well.
Here's the corrected alley shot...
And here are the LR 3.6 Lens Correction settings I used...