I think the drums in the beginning are done quite well. Like the delay that’s added there.
The thunder sound is mixed wayyyy too loud and doesn’t blend well into the rest of the mix. I feel like it’s too full-spectrum and should be EQed a bit, especially on the high end.
I’m not sure how I feel about the dissonance towards the end with the panning strings against the bass and the synth. It definitely feels disorienting in an interesting way, but I wonder if it could somehow be prepared a bit better (IE slowly layering the parts and having them gradually become more dissonant rather than all at once). Not sure. I like the vibe, but something isn’t clicking for me there