They are very bright. Is the contrast on your camera set on high? If so, you might want to put it on medium. I had my camera on high contrast, and it was too much. There were always pure white spots, and the shadows were still almost totally black. It looks like your dark spots are good, but your bright spots are almost pure white (your highlights are clipping...lol)
Perhaps take your exposure compensation and lower it a step. Your shutter speed was really low, you could bump it up a step without changing your aperture or ISO. Or, put your camera in aperture mode, change the aperture one step bigger and take a photo over and over. You'll get about 10 different shots, but each one will be a little different, and then you can decide which one you like the most. See if that makes more detail come out and gives you that depth you're looking for. The lighting does look harsh, but that might not be a problem if you lower your brightness (It might look patchy and cool). Besides, if you're like me, you take photos when you can (I work second shift, so I don't get up early enough for dawn and I work through the sunset).
There are lots of details in your photos with all the foliage. That's cool and all, but I'm just trying to come up with ideas on why you're not getting your depth you want. You could try putting the foreground out of focus. That would make people look at the back of the photo, but it might also make them suck
I was always told to have some perspective up front in the photo so you can tell just how far away something is, but I think you've done that. Perhaps something bigger, like a dead log or something would make people realize just how deep it is...
Maybe one of these really smart people who have been photographing as long as we've been alive will help you out.