I find these really hard to comment on. I really like the photos, especially like how you played with the shadow on the second one. There is nothing to dislike about any of them to me. Yet for some reason, and it annoys me more than it should you, they don't wow me like wow great photos. I can't put my finger on it what it is. I'm sorry I wish I could say something more constructive. But as you invited and encouraged feedback I wanted to provide some rather than leaving it....
Hope that makes sense.