Should i be upset that my Bil’s wife didn’t smile for photos?

Here’s the story:


My husband and I did a “mini-mony” with the intention of having a big wedding (we’re calling it the “megamony” or “The Meg” for short). It was a sweet intimate affair, but it was cold and windy (but not raining like we thought 🙌🏻) and our food was so-so. We hired his friend to do our photos which are also so-so. TLDR; it was a stressful day that I really just wanted to get over with.
Anyways, when my husband and I got the photos back, I noticed that my BIL’s wife isn’t smiling in the photos with her, my BIL, my husband, and myself, but is smiling in all the photos without me or the whole family in them.
She and my BIL got married last February so she could get her green card. They want to have a big ceremony both in the states and in India (where she’s from), but she can’t leave the country yet. She’s also a vegetarian (we tried to accommodate her and asked what she would be okay with ahead of time).
Tbh, I’m a little upset but I also know that I’m a sensitive, neurodiverse person who can misinterpret certain actions. I also know that I shouldn’t let one person affect how I view my day.
What do y’all think? Should I let it go?