There is no freaking way I can compete with stuff like this. It's so awesome. It's like you took Real Life Absurdities and made it better (mainly by adding a longer break, I guess). Plus you hit the halloween nail on the head. The instrumentation really works to hit the theme - like that vibrato whistle at :35, but the chord progressions also do a really nice job hitting it too.
One of the things that I really enjoy about your pieces is your use of melody and counter melody. There is almost never just a single melody going at once - you always pair them up with a loud one doing one thing and then a quieter one doing something else.
The only reason I'm holding back from 10/10 is that I feel like it's a little too close to Real Life Absurdities, which was itself fairly close to Steam's Wonderful Contraptions. (And see, I'm a total hypocrite, because I didn't laud you or anything when you did She Was Picking Flowers...) I feel like the primary strength of those 3 songs is in the crazy and unique instrumentation choices rather than in the melody, which means that the novelty wears off once you hear it a lot (not that I've been putting your songs on repeat for hours... ok, perhaps I have been...) but, and this is just my opinion, the novelty of a good melody will never wear off.
So what I'm trying to say is I would really like to hear another Mechanical Anima out of you, because that's my favorite of your styles. But, like, despite all my soliloquizing about melody, I still think that this song is really freaking great. In fact I feel almost criminal docking that half star because the song is that good.