Fantastic level, party worm :)
Pros:
The general theme of the level was really great. Having never seen Dr. Who, I was confused by the story a bit at the beginning, but toward the end it started to make more sense. The soul / sackbot mechanic was extremely cool, especially how the lighting and mood of the level changed with it. Really great job.
The puzzle with all the shapes was extremely well done as well. I liked that you didn't give the option to automatically solve the puzzle, I think the 5 and 10 minute timers are a great solution to that. I'd maybe suggest taking even more points from the player though.
Visuals were consistently great throughout.
Cons:
The puzzle in which you have to line up the sections with the 2 way switches I felt was far too easy. It just seemed to me that you pulled each switch one time in order and you were done basically. It was also kind of hard to get each part lined up exactly so the soul could squeeze through.
The first few areas were fairly confusing story-wise to me, having never seen the show. But like I said it made sense (mostly) by the time I finished the level.
At the big puzzle, I was initially confused as to what to do. Some kind of direction for that would help, I think.
That's really the only cons I can think of right now. You did a wonderful job with the level, I'd love to see more levels from you :)

