I've found that nearly every photo can benefit from having a little white balance tweaking. In a scene with both sun and shade, the camera might balance off the sun and you want the colors right on the shade, or the fluorescent lights are just a slightly different temperature, or quite often, you'll find that a color that might be slightly more accurate isn't quite as pleasing. To say nothing of just about every digital camera on the sun being incapable of detecting tungsten light properly, making everything yellowy.
The first couple shots are particularly tough for white balance as there's a lit interior clearly visible as well as the exterior - you're stuck with either the inside or the outside not looking quite right. (Unless you go really nutty and do it twice and use Photoshop to combine them!) Photos taken inside during the daytime have similar problems, when you balance the WB for the people inside, what you see outside turns bluish. The perils of white balance... but all that is a good reason to shoot RAW; even if you don't mess with the WB now, you have the option of going back later, and it completely removes the need to even think about it when taking the photo.
Anyway, having a nice usable ISO 1600 is pretty liberating, isn't it?

3200's handy too in emergencies. (Like inside PotC!) But like gruZ said, most of those shots don't actually need to go quite that high, especially the ISO 3200 one, where your aperture is a very high F13. Generally, I think it's best to keep it in Auto ISO (which by default goes up to ISO 800, though you can change that) and only go higher when you see your shutter speeds getting long enough that you're getting unwanted motion blur.