Very interesting, I don't think I have ever seen a work depicting the scene of falling through the eyes and mind of the person.
I love the the idea of the thought bubbles and the abstract metaphorical sense behind em, though I like the first and second one the most, the rest of the bubbles though to me feel cliche and somewhat uninteresting with little depth in comparison.. especially the "what goes up must come down" one. However I think that their "gradually turning to the right effect" doesn't enhance the falling effect, and that perhaps making it just straight but getting smaller, or even fading out, would have been preferable.
I do like that the world is grey and blurred as in a dream, however I think it would have added so much as a dream is usually abstract and all you can tell is that you are definitely falling, to make the fall endless with no end in sight, also maybe make the buildings surreal and stretch out indefinitely.
In the end I did fav this work because I do find its vision and originality refreshing and above all, i believe that is more important then any other factor in an artwork.