Interesting interpretation of the theme! I think this was a cool game, I enjoyed the ramping up of responsibilities that you have. However, I do have a couple of critiques:
1. the picking up is very inconsistent and can be a bit frustrating. Sometimes it took 2 or 3 clicks to pick something up and it doesn't feel responsive!
2. It needs to go faster! In the later levels, I think the difficulty should have been ramped up, it was quite smooth sailing for most of it, with a lot of waiting around for the next thing to spawn.
Anyway, cool entry, and I appreciate the custom made 3D models!