We know that making a track is a lot of work and not it's not easy.
Mystic island have many good ideas, like the fireflies and lanterns halo. But this track needs more polish, many textures are old and we have better ones (see in other tracks), some objects are just untextured.
Some bugs:
Halo glitch, we see the limit of alpha plane
Tree with black background (maybe a problem with alpha channel)
Brick and earth textures (They are ugly)
The transition between the track and the ground isn't smooth everywhere
Objects untextured
Flying trees
Maybe too fireflies and magical effect
Some objects can be improved
Reverse mode (that's not a little problem)
And for the 0.8 version we have chosen the green valley witch looks good.
But it's a very nice start. Continue to improve your track