overall, it's ridiculously sexy as always. a couple suggestions though:
1)that arch in the last shot needs work. Either make it the white color of the mortar it's connected too, or incorporate the white and red together (perhaps white mortar with red birck accenting the arch edge?) Secondl,y maybe flatten out the top and have some plants or vines growing down off the top. I dunno, just some ideas.
2)Also that sand in the last picture could probably overflow a bit onto the little plaza. Sand just doesnt' look right ending in straight lines.