It's just about ok, at 1024 px wide they are large, we suggest people downsize their photos to 800 px wide for web presentation, but ... oh well.
As to the photos as such: I am somewhat conservative in my ways of looking at things, which is why photos like the last have a hard time "getting to me", as it were, but I am very visually attracted by the second, despite the grain, and also despite the white corner on the lower right, and even more attracted to the third --- being somewhat abstract, but not that much, working with the strong contrasts, clear shadows, and a bit of texture added to the whole. In short: the third is the winner out of these six in my book ... but no one needs to really care about "my book" . Everyone can like what they like. Of course.