I like the third shot, done at sunset. I think it might look even better if you emphasized the contrast of the sunlight and the shadowed areas, and made the sunlight patches look even brighter, even "hotter". Maybe deepen the depth of the shadows at the bottom of the frame, maybe add a cooler, more-blueish tint to the shadow areas, and make the sunlighted ares more yellowish-orange. Let me put it this way: this shot looks "digital". If it had been shot on say, Kodachrome 64 Professional slide film, it would have a "pop!", and also a warmth in the sunlight, and a coolness in the shade that would convey the time of day with much more emphasis. I like the shot, but I think it could be adjusted to look much more impressive.