Looks good overall, I think you're definitely about set to move forward! My only comments would be mere nitpicky things, but hey, I guess since you asked:
Something about the background layers coloring/contrast seems slightly off compared to foreground. I know it's standard practice to adjust the brightness/saturation/detailing of backgrounds to keep the foreground elements readable, but my overall impression is there's too heavy of a shift to pink-ish tinted hues. And maybe that's intentional because of sunset-lighting or something but I still feel like it could use more of an orange/yellow vibe instead. And maybe the sky dithering could have less color values to match the number of shading hues in other parts of your environment.
Anyway, nothing major, you've definitely got something nice here. Which platform will this be on? Be sure to share again when it's out!