Here's the requirements for adding to a build btw:
1024x1024 PNG
No transparency
(Ideally) dark mode variant
Oh and let me know how to attribute it, like what handle you want for credit in the app icon page
I also recommend to use https://iosfeeds.com/tools/icon-preview to test on the home screen. I added your image above, and it looks like maybe it would show more detail if it was cropped/zoomed in a bit (similar to the main app icon)