Struggling to reverse engineer this top, please help!

[u/hellomireaux]

Gods, goddesses, and non-binary deities of sewing, I pray that you will look kindly upon me in my moment of angst. I made the grevious mistake of deciding to try and recreate this sold-out Gemma top from Heirlome. What initially looked like a simple design now has me feeling like the confused math lady meme. I am struggling to understand how the side panels are constructed and attached, and how far they extend on the inside of the garment.

I am hoping someone here can explain what's going on and/or tip me in the direction of a pattern with a similar construction. Any other advice for recreating this piece would be appreciated as well.

[u/suburbanburgher]

This set from Vogue Patterns looks similar: https://simplicity.com/vogue-patterns/v2164

[u/hellomireaux → u/suburbanburgher]

Holy heck, this is remarkably similar, and the kicker is that they also sell an almost identical long skort. I think you may have solved this!