I didn't successfully manage the cave jumps after the raven after 10~15min and lose so I gave up.
First, the positive : The fact that you made everything by yourself is pretty impressive, especially for 3D. The Wild Cards are used (all of them!). I had a good time playing it.
But, I didn't fully understand the universe : is is some kind of cute world? Or the narrator play with us all along? It doesn't seem you can merge both, and the result is a bit strange. The music in the cave is partly happy, partly disturbing. Finally, you could have done a little bit more for the control, like a camera control by joystick.