I think the parallax layers look much nicer.
I'm not sure I particularly like the scale of the world and the scale of the jump, but that is up to your game's look and feel.
Yeah it is a bit excessive so I've changed it a it here:
The second image makes me think the nearest layer of rocks must be really close to the camera. If that's the idea, then it's success!
Yep that's the goal!