Of animals, it would seem.

I believe that is a boat.

This piece of rock was used to create music! In fact, when Sharmila tried hitting it with different stones at different places, it produced different tones (from the rock’s vibrations). I was surprised by the volume!

Used all my intuition and went with the one on the right. It did not help that there was a lady inside. Apparently, cleaning the floor. She said something to me. Unfortunately, my grasp of Azerbaijani is worse than my grasp of petroglyphs. Anyways, turns out I was right.