I don't you have to think of a lot of them, that's kind of the beauty of it. Development exists for a reason... the idea can stay the same but how it evolves over time is really how people appreciate the music!
1. Too many shivers! Fear of the unknown comes with unfamiliarity. The drone was good and didn't get too loud or too soft, nice.
2. I liked the idea you had starting with the octave and then the minor 9th, but you never really completed that thought, just an idea. Quarter-serealistically, your upper F's and G's don't have enough impact because of nothing to really compare it too. You're going to want to figure out the PIC's of everything starting with one, and going up to 14 or 16.
Overall this reminded me of playing Resident Evil 4 again; no easy feat. Nice!
Well for what it's worth, to my ears, Nole would fit in with any other post-modern piece. Nolito though is quite a nice little gem.
Domenico Scarlatti wrote a neat fugue based on a theme that his cat made while walking on his harpsichord keyboard.
Cat's fugue: https://youtu.be/CbW1nNBqVnI