[ti]hard[/ti]Empyrean by Doctorofdeth (me) [Hard 5 stars] {video}

Gameplay (8.6/20)
The first cube is a bit boring. There are several empty parts with not much gameplay. Also, the ship and UFO parts could have used a few spikes, especially since it shows a disconnect with the difficulty of the drop. The robot part is a bit more fun, due to the gameplay having more interesting elements.

The drop is a bit more fun, but it gets boring after a while, due to the repetitiveness of the gameplay. You could have had more form changes in order to make things better gameplay-wise. Also the end has no gameplay.
Design (9.2/20)
You could have added more decoration to the parts before the first effect. The first effect is pretty cool though, because it uses blending pretty well. The block designs are also decent. The ship and UFO is also well-made because of good decorations as well as a cool use of the moving water. It looks pretty good. The robot part has decent designs and good decorations, but the last structure just has one block for most of it. You could have added more shading or detail to that last block.

The drop really doesn't look as good. The effect is decent, but is used for pretty much the whole drop. The end is also empty. You could have added more detail and decoration to the blocks, as it is just a white color. You could have added more variety.
Sync (7.6/10)
The empty part at the beginning doesn't really have synced, but the later cube part is better synced. The ship and UFO have ok general sync, but there aren't good background pulses which would improve the sync to help it with the not-as-good gameplay sync. The robot part at least has great sync.

The drop has great sync, due to really well synced speed portals. However, the last empty part does not have much of any sync.
Originality (1.05x)
The first effect is pretty original, as is the cool water raising within the blocks. The later effects could have used more originality and variety though.
Total (26.7/60)
Decent.
Difficulty
Hard 5*.