Stephanie,
There is a place for photos for critique, and another for photos for display. If your posting these photos was to seek critique, then I apologize that I misunderstood you in my agreement to remrf's post. I didn't realize these were test shots; you didn't really say that they were one way or the other, I guess. Of course one learns through comments from others. I just didn't know you were seeking critique, that's all.
I think that changing one's taking position from standing is one of the best ways to get new perspectives on things. It really adds a dynamic element to a photo. There is something about crouching down low or sometimes getting up higher.
On APUG, they have a gallery just for critiques - things are posted there specifically to seek critique. There, one can tell that people are seeking feedback, as compared to showing stuff off.
If you're going to do testing, the ideal scenario is to shoot an entire roll of the exact same shot. Then you compare the different dilutions and developers. But even I'll admit that's a bit overkill most of the time. Have fun trying the different combinations 🙂
allan