So just recently many of my photos have been getting rejected for 'Too Little or Too Much' contrast, but when I take a look at the histogram, I notice that there is no two different spikes, and instead the histogram suggests that contrast is actually fine. I know the below photos are rejected for other reasons too, which if someone could explain to me exactly what they mean, because I personally disagree, that'd be awesome!

Photo 1:
Photo 2:

Hope you can be of help