These are both great subjects for B&W.
In the first shot, I’d go for a more dynamic point of view. Lower to the ground, move to the right to use the railing as a leading element…. Back-lighting can be dynamic, but in this shot the background is washed out so much and the foreground lightened so much that it’s hard to tell what the lighting is. Random blotches in the picture are lighter too, like the spot of grass below the covered walk on the right and spot of stone to the left of the small arched window in the top of the building. It appears to me that all the editing is just an attempt to cover up a not-so-great shot in the first place.
The shot of the pillars is better. I would have stepped to the right to lessen the amount of space between the pillars to almost nothing. I would have framed it to include much less space above the in-focus pillar. The whole top-left portion of the image is empty; and worse, the empty space is in focus distracting from the one pillar that is suppose to be the main focus. The emphasis on texture is great, though.
Also, in the first shot, take the time to remove the spots of dirt that show up in the sky. I see 5 right off in the left half of the sky.