Help me pick a dress for a birthday party (no dress code)

I’m going to a friend’s birthday party tomorrow and there’s no specific dress code, so I’ve been trying to figure out what to wear.

I went through my closet and narrowed it down to these three dresses, but now I can’t decide which one works best for the occasion.

I’m aiming for something that looks put-together but not overdone. Also hoping it doesn’t come off as too casual or cheap-looking. Slightly random detail… one of these is actually from Shein 😅 curious if anyone can tell which one (or if it’s not obvious at all)

Would love to hear which one you’d pick, or if you think none of them really work.
Open to any styling suggestions too!