My ranking:
1. Visions - a musical composition masterpiece. The extended ending really plays well not just as a closer for the album, but as a closer for live shows, as well. It also has the best drumming in a Haken song by Raymond Hearne (Darkest Light is second best drumming in my book). The only thing I wish to be changed in this song is the fast guitar playing backing the vocals at around 14:58-15:21. A more skilled guitarist would have pulled that off more smoothly and with more precision.
2. Falling Back to Earth - beautiful. that's all.
3. Crystallised - Beginning and ending is amazing. Middle part is a bit too extended and repetitive as I noted in my earlier posts.
4. Celestial Elixir - this is a good song, but it has one structural defect as an "epic." It does not have a payoff section. For me, a long song really needs a definitive climax to make the long journey worth it.