1:20 reminds of Final Fantasy 7 when you first get on Cid's airship.
It goes from creepy to adventureous but to me that's good because music is an emotion.
If you're looking for advice on scoring larger ensembles, while I'm not as good as Luis and Monarcheon, large ensembles and epic sounding scores is what I love above all.
Personally I like using major and minor thirds when it comes to chords and progressions. First I'll construct a eight bar progression and create a melody over it. For the next eight bars I like to keep the melody going then add something that can boost the overall sound like brass over the chords then my two signature instruments: choir and timpani...Oh I love those! Hahaha.
I don't use many instruments in fear of clashing. I know none of that was helpful...sorry.
1. Very segmented and kind of introduces elements very sporadically. A lot of mixed gestures made the whole thing more confusing than it had to be probably. I appreciated the general sense of dynamic levels throughout (with exception of the low E hits... that didn't feel progressive). On the whole though, it was pretty alright. It did its job, albeit with kind of a shaky body.
2. Very pleasant. I imagine looking at the world's destruction from space while listening to it. The ending was uncharacteristically abrupt though... for such an inspiration, I imagine a very somber, conclusive ending rather than a question...