This is just my opinion, but I think the first shot would be better with more foreground and a little less sky, some of the upper lighter yellow cropped out. The second one..... besides a brick wall, what is it? It's not very interesting.
I think that both are really good pics. I think that the first one could be croped a little more. The second one i think is very good. I like the bricks
hmmm...sorry, i cant get any more foreground in the first one, thats all there is
as for the bricks...its a study in texture and lines if you want it to be something more...