Oh MAN Noah! These are COOL!
I looked at the paintings before perusing your scores, and I think you've captured the character of the art in music beautifully. Your thematic material, your orchestral colors, the huge variety of textures - first rate, man! I only wish it were a real orchestra playing these. All in good time!
What's your instrument? I suspect you're a fiddle-player, 'cause you've given the concertmaster as well as the principal 'cellist a very nice showpiece here, along with gorgeous solos for several of the principal winds. Dang but you've done a nice job handling your orchestra! I think I'm almost jealous!
A word with you about articulations though (or the lack thereof): you said this score was pretty rough, but there are a lot of passages in here that I couldn't help feeling should be slurred more - or something. At first I thought maybe you'd just not put any in anywhere, but then I noticed some used judiciously here and there; but still, are you sure you want all those lovely melodies tongued or bowed on every note? If I were you, I'd keep in mind that just because playback plays every note full value, that doesn't mean live musicians are going to, and I'd be more specific about what I wanted played more smoothly, else you might end up with each note articulated separately, and I don't think that's what you're going for. If you know this is exactly what you want, then great, but I just thought I'd mention it in case it was something you hadn't given much thought.
You did a really good job of writing idiomatically for most of the instruments. I loved your harp parts in particular - they're idiomatic and add an ethereal quality like any good harp part. I think you may have asked too much of your poor glockenspiel player in movement 5 though; at that tempo, I'm not at all sure what you've written can be played accurately. I'm not a percussionist though, so I might be wrong; all I know is I probably wouldn't have written it. It sure sounds cool though! 😄
Congratulations on what to my ears and sensibilities is a triumph of programmatic music making! Keep up the good work!