Lets see
First of all, let me start off by saying that I like all the pics, if I come off as sounding negative here, it is only because I only have time to point out what I think should be better as I am at work :>
Glare of Sam Houston:
The lines are a bit crooked. Looks like you were slightly at an angle to the statue so all the lines slant towards the right. This is something you have to be very careful about when shooting architecture with a wide angle.
Other then that, I'm not exited about the halo you've made around the statue, although that might be intended and thus a matter of taste

(or when I look at the next pic, looks like there are lights on the statue, in which case it's hard to do anything about it..)
An Uneasy Morning:
Much better, in this one the halo is reduced and the lines are all going the same way, much better angle. Wonderful warm light in the horizon. Only thing i can put my big fat finger on is the grass. If i'm not mistaken, this is tonemapped, and the grass really shows it :>
There also seems be be a slight movement unsharpness to some of the growth, is it a multiple exposure image?
A Touch of Blue:
I might have been exagerating when I said I liked all the pictures, because to be frank this photo is technically... horrible :> The composition, colors and focus are all as they should be, (and nicely done too actually) but the image itsself is ruined by the PP I think. It looks like everything but the bird is overexposed, except the ground infront of it, which looks like you've brigthened considerably. The result is that I end up having my eyes drawn to that horribly unsharp tree in the foreground.
To the Pool in the Morning Light:
Wonderfull, guessing this is tonemapped as well, but not so much that it detracts anything from the picture. I like it!
The only thing I notice is that you've once again not paid enough attention to where you're standing, you should have been in the middle, so that the image was similar on both sides. when you're just a little bit off like this, the lines look all wrong and you loose that tranquil look you're after in an image like this.
I don't agree that you need anything else to add life to this picture, I like it as it is, and the center issue i pointed out is a minor thing!
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I has a flavor!
CC always welcome.