(I just noticed that I never hit the send button on this post, sorry about that!)
Ming Yin’s primary suggestion for me was that some of my photos were too dark. Some of the photos that he commented on were taken at very fast shutter speeds to intentionally make the photos dark, he felt that some were too dark. I think that part of that is the monitor that they were viewed on since they didn’t look as dark on my computer at home.
I will be more conscious of the lighting and shutter speeds that I use and in the choosing of the photos that I post.