So i’ve been trying to print a photo i’ve made…

I know it’s not the best photo but it keeps coming out with issues i can’t see on my monitor. Namely artifacts that seem to result from light blooming from the subject.

It seems like the printer at my local photography store (should be a fairly modern one) has trouble printing the gradient. Or rather, something in my file is telling it to insert darker colors in the middle of this gradient, and now i have this dark rainbow shaped blob that places itself along the borders of that gradient.

Anybody know what i’m doing wrong and how i can combat these artifacts? I’m going nuts.

Pics of issue and source file are right below this text so you can check it out yourself (those of you working at a print shop perhaps?)

https://drive.google.com/drive/folders/1C_HpLKt1TRlIzOmGh_-bNCkZAlJYGM8E

HALP